diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index 83c2bedbc..382247479 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 0
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -445,8 +454,8 @@
 #define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index a45911858..3ff66c30f 100755
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -31,79 +31,20 @@
  *  - http://reprap.org/pipermail/reprap-dev/2011-May/003323.html
  */
 
-#include "Marlin.h"
-
-#include "ultralcd.h"
-#include "planner.h"
-#include "stepper.h"
-#include "endstops.h"
-#include "temperature.h"
-#include "cardreader.h"
-#include "configuration_store.h"
-#include "language.h"
-#include "pins_arduino.h"
-#include "math.h"
-#include "nozzle.h"
-#include "duration_t.h"
-#include "types.h"
-
-#if HAS_ABL
-  #include "vector_3.h"
-  #if ENABLED(AUTO_BED_LEVELING_LINEAR)
-    #include "qr_solve.h"
-  #endif
-#elif ENABLED(MESH_BED_LEVELING)
-  #include "mesh_bed_leveling.h"
-#endif
-
-#if ENABLED(BEZIER_CURVE_SUPPORT)
-  #include "planner_bezier.h"
-#endif
-
-#if HAS_BUZZER && DISABLED(LCD_USE_I2C_BUZZER)
-  #include "buzzer.h"
-#endif
-
-#if ENABLED(USE_WATCHDOG)
-  #include "watchdog.h"
-#endif
-
-#if ENABLED(BLINKM)
-  #include "blinkm.h"
-  #include "Wire.h"
-#endif
-
-#if HAS_SERVOS
-  #include "servo.h"
-#endif
-
-#if HAS_DIGIPOTSS
-  #include <SPI.h>
-#endif
-
-#if ENABLED(DAC_STEPPER_CURRENT)
-  #include "stepper_dac.h"
-#endif
-
-#if ENABLED(EXPERIMENTAL_I2CBUS)
-  #include "twibus.h"
-#endif
-
-#if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
-  #include "endstop_interrupts.h"
-#endif
 /**
- * Look here for descriptions of G-codes:
+ * -----------------
+ * G-Codes in Marlin
+ * -----------------
+ *
+ * Helpful G-code references:
  *  - http://linuxcnc.org/handbook/gcode/g-code.html
  *  - http://objects.reprap.org/wiki/Mendel_User_Manual:_RepRapGCodes
  *
- * Help us document these G-codes online:
- *  - https://github.com/MarlinFirmware/Marlin/wiki/G-Code-in-Marlin
+ * Help to document Marlin's G-codes online:
  *  - http://reprap.org/wiki/G-code
+ *  - https://github.com/MarlinFirmware/MarlinDocumentation
  *
  * -----------------
- * Implemented Codes
- * -----------------
  *
  * "G" Codes
  *
@@ -276,6 +217,68 @@
  *
  */
 
+#include "Marlin.h"
+
+#include "ultralcd.h"
+#include "planner.h"
+#include "stepper.h"
+#include "endstops.h"
+#include "temperature.h"
+#include "cardreader.h"
+#include "configuration_store.h"
+#include "language.h"
+#include "pins_arduino.h"
+#include "math.h"
+#include "nozzle.h"
+#include "duration_t.h"
+#include "types.h"
+
+#if HAS_ABL
+  #include "vector_3.h"
+  #if ENABLED(AUTO_BED_LEVELING_LINEAR)
+    #include "qr_solve.h"
+  #endif
+#elif ENABLED(MESH_BED_LEVELING)
+  #include "mesh_bed_leveling.h"
+#endif
+
+#if ENABLED(BEZIER_CURVE_SUPPORT)
+  #include "planner_bezier.h"
+#endif
+
+#if HAS_BUZZER && DISABLED(LCD_USE_I2C_BUZZER)
+  #include "buzzer.h"
+#endif
+
+#if ENABLED(USE_WATCHDOG)
+  #include "watchdog.h"
+#endif
+
+#if ENABLED(BLINKM)
+  #include "blinkm.h"
+  #include "Wire.h"
+#endif
+
+#if HAS_SERVOS
+  #include "servo.h"
+#endif
+
+#if HAS_DIGIPOTSS
+  #include <SPI.h>
+#endif
+
+#if ENABLED(DAC_STEPPER_CURRENT)
+  #include "stepper_dac.h"
+#endif
+
+#if ENABLED(EXPERIMENTAL_I2CBUS)
+  #include "twibus.h"
+#endif
+
+#if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
+  #include "endstop_interrupts.h"
+#endif
+
 #if ENABLED(M100_FREE_MEMORY_WATCHER)
   void gcode_M100();
 #endif
@@ -10020,7 +10023,7 @@ void setup() {
   #endif
 
   #if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
-    setup_enstop_interrupts();
+    setup_endstop_interrupts();
   #endif
 }
 
diff --git a/Marlin/endstop_interrupts.h b/Marlin/endstop_interrupts.h
index db8691d19..495a758f1 100644
--- a/Marlin/endstop_interrupts.h
+++ b/Marlin/endstop_interrupts.h
@@ -21,191 +21,186 @@
  */
 
 /**
- *  Endstop interrupts
- *  Without endstop interrups the stepper-ISR must always test all endstops when interested in their states (endstops.update()).
- *  Most time the test will result in finding out nothing has changed.
- *  With endstop interrupts endstops.update() is called only when we know that at least one endstop has changed its state.
+ * Endstop Interrupts
  *
- *  This can work only if all __used__ endstop pins can provide ether an 'external interrupt' or a 'pin change interrupt'.
- *  You can find out about pins issuing interrupts by running 'pin_interrupt_test.ino' (Marlin\buildroot\share\pin_interrupt_test\pin_interrupt_test.ino)
+ * Without endstop interrupts the endstop pins must be polled continually in
+ * the stepper-ISR via endstops.update(), most of the time finding no change.
+ * With this feature endstops.update() is called only when we know that at
+ * least one endstop has changed state, saving valuable CPU cycles.
+ *
+ * This feature only works when all used endstop pins can generate either an
+ * 'external interrupt' or a 'pin change interrupt'.
+ *
+ * Test whether pins issue interrupts on your board by flashing 'pin_interrupt_test.ino'.
+ * (Located in Marlin/buildroot/share/pin_interrupt_test/pin_interrupt_test.ino)
  */
 
  #ifndef _ENDSTOP_INTERRUPTS_H_
-   #define _ENDSTOP_INTERRUPTS_H_
+ #define _ENDSTOP_INTERRUPTS_H_
 
-  /**
-   * Patch for pins_arduino.h (...\Arduino\hardware\arduino\avr\variants\mega\pins_arduino.h)  
-   *
-   * These macros for the Arduino MEGA do not include the two connected pins on Port J (D13, D14).
-   * So we extend them here because this are the normal pins for Y_MIN and Y_MAX on RAMPS.
-   * There are more PCI enabled processor pins on Port J, but they are not connected to Arduino MEGA.
-   */
-  #if defined(ARDUINO_AVR_MEGA2560) || defined(ARDUINO_AVR_MEGA)
-    #undef  digitalPinToPCICR
-    #define digitalPinToPCICR(p)    ( (((p) >= 10) && ((p) <= 15)) || \
-                                    (((p) >= 50) && ((p) <= 53)) || \
-                                    (((p) >= 62) && ((p) <= 69)) ? (&PCICR) : ((uint8_t *)0) )
-    #undef  digitalPinToPCICRbit
-    #define digitalPinToPCICRbit(p) ( (((p) >= 10) && ((p) <= 13)) || (((p) >= 50) && ((p) <= 53)) ? 0 : \
-                                    ( (((p) >= 14) && ((p) <= 15)) ? 1 : \
-                                    ( (((p) >= 62) && ((p) <= 69)) ? 2 : \
-                                    0 ) ) )
-    #undef  digitalPinToPCMSK
-    #define digitalPinToPCMSK(p)    ( (((p) >= 10) && ((p) <= 13)) || (((p) >= 50) && ((p) <= 53)) ? (&PCMSK0) : \
-                                    ( (((p) >= 14) && ((p) <= 15)) ? (&PCMSK1) : \
-                                    ( (((p) >= 62) && ((p) <= 69)) ? (&PCMSK2) : \
-                                    ((uint8_t *)0) ) ) )
-    #undef  digitalPinToPCMSKbit
-    #define digitalPinToPCMSKbit(p) ( (((p) >= 10) && ((p) <= 13)) ? ((p) - 6) : \
-                                    ( ((p) == 14) ? 2 : \
-                                    ( ((p) == 15) ? 1 : \
-                                    ( ((p) == 50) ? 3 : \
-                                    ( ((p) == 51) ? 2 : \
-                                    ( ((p) == 52) ? 1 : \
-                                    ( ((p) == 53) ? 0 : \
-                                    ( (((p) >= 62) && ((p) <= 69)) ? ((p) - 62) : \
-                                    0 ) ) ) ) ) ) ) )
+/**
+ * Patch for pins_arduino.h (...\Arduino\hardware\arduino\avr\variants\mega\pins_arduino.h)
+ *
+ * These macros for the Arduino MEGA do not include the two connected pins on Port J (D13, D14).
+ * So we extend them here because these are the normal pins for Y_MIN and Y_MAX on RAMPS.
+ * There are more PCI-enabled processor pins on Port J, but they are not connected to Arduino MEGA.
+ */
+#if defined(ARDUINO_AVR_MEGA2560) || defined(ARDUINO_AVR_MEGA)
+  #undef  digitalPinToPCICR
+  #define digitalPinToPCICR(p)    ( (((p) >= 10) && ((p) <= 15)) || \
+                                  (((p) >= 50) && ((p) <= 53)) || \
+                                  (((p) >= 62) && ((p) <= 69)) ? (&PCICR) : ((uint8_t *)0) )
+  #undef  digitalPinToPCICRbit
+  #define digitalPinToPCICRbit(p) ( (((p) >= 10) && ((p) <= 13)) || (((p) >= 50) && ((p) <= 53)) ? 0 : \
+                                  ( (((p) >= 14) && ((p) <= 15)) ? 1 : \
+                                  ( (((p) >= 62) && ((p) <= 69)) ? 2 : \
+                                  0 ) ) )
+  #undef  digitalPinToPCMSK
+  #define digitalPinToPCMSK(p)    ( (((p) >= 10) && ((p) <= 13)) || (((p) >= 50) && ((p) <= 53)) ? (&PCMSK0) : \
+                                  ( (((p) >= 14) && ((p) <= 15)) ? (&PCMSK1) : \
+                                  ( (((p) >= 62) && ((p) <= 69)) ? (&PCMSK2) : \
+                                  ((uint8_t *)0) ) ) )
+  #undef  digitalPinToPCMSKbit
+  #define digitalPinToPCMSKbit(p) ( (((p) >= 10) && ((p) <= 13)) ? ((p) - 6) : \
+                                  ( ((p) == 14) ? 2 : \
+                                  ( ((p) == 15) ? 1 : \
+                                  ( ((p) == 50) ? 3 : \
+                                  ( ((p) == 51) ? 2 : \
+                                  ( ((p) == 52) ? 1 : \
+                                  ( ((p) == 53) ? 0 : \
+                                  ( (((p) >= 62) && ((p) <= 69)) ? ((p) - 62) : \
+                                  0 ) ) ) ) ) ) ) )
+#endif
+
+volatile uint8_t e_hit = 0; // Different from 0 when the endstops shall be tested in detail.
+                            // Must be reset to 0 by the test function when the tests are finished.
+
+// Install Pin change interrupt for a pin. Can be called multiple times.
+void pciSetup(byte pin) {
+  *digitalPinToPCMSK(pin) |= bit (digitalPinToPCMSKbit(pin));  // enable pin
+  PCIFR  |= bit (digitalPinToPCICRbit(pin)); // clear any outstanding interrupt
+  PCICR  |= bit (digitalPinToPCICRbit(pin)); // enable interrupt for the group
+}
+
+// This is what is really done inside the interrupts.
+FORCE_INLINE void endstop_ISR_worker( void ) {
+  e_hit = 2; // Because the detection of a e-stop hit has a 1 step debouncer it has to be called at least twice.
+}
+
+// Use one Routine to handle each group
+// One ISR for all EXT-Interrupts
+void endstop_ISR(void) { endstop_ISR_worker(); }
+
+// Handlers for pin change interrupts
+#ifdef PCINT0_vect
+  ISR(PCINT0_vect) { endstop_ISR_worker(); }
+#endif
+
+#ifdef PCINT1_vect
+  ISR(PCINT1_vect) { endstop_ISR_worker(); }
+#endif
+
+#ifdef PCINT2_vect
+  ISR(PCINT2_vect) { endstop_ISR_worker(); }
+#endif
+
+#ifdef PCINT3_vect
+  ISR(PCINT3_vect) { endstop_ISR_worker(); }
+#endif
+
+void setup_endstop_interrupts( void ) {
+
+  #if HAS_X_MAX
+    #if (digitalPinToInterrupt(X_MAX_PIN) != NOT_AN_INTERRUPT) // if pin has an external interrupt
+      attachInterrupt(digitalPinToInterrupt(X_MAX_PIN), endstop_ISR, CHANGE); // assign it
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(X_MAX_PIN) != NULL, "X_MAX_PIN is not interrupt-capable"); // if pin has no pin change interrupt - error
+      pciSetup(X_MAX_PIN);                                                            // assign it
+    #endif
   #endif
 
-  volatile uint8_t e_hit = 0; // Different from 0 when the endstops shall be tested in detail. 
-                              // Must be reset to 0 by the test function when the tests are finished.
-
-  // Install Pin change interrupt for a pin, can be called multiple times
-  void pciSetup(byte pin) {
-    *digitalPinToPCMSK(pin) |= bit (digitalPinToPCMSKbit(pin));  // enable pin
-    PCIFR  |= bit (digitalPinToPCICRbit(pin)); // clear any outstanding interrupt
-    PCICR  |= bit (digitalPinToPCICRbit(pin)); // enable interrupt for the group
-  }
-
-  // This is what is really done inside the interrupts.
-  FORCE_INLINE void endstop_ISR_worker( void ) {
-    e_hit = 2; // Because the detection of a e-stop hit has a 1 step debouncer it has to be called at least twice.
-  }
-
-  // Use one Routine to handle each group
-  // One ISR for all EXT-Interrupts
-  void endstop_ISR(void) {
-    endstop_ISR_worker();
-  }
-
-  #ifdef PCINT0_vect
-    ISR(PCINT0_vect) { // handle pin change interrupt
-      endstop_ISR_worker();
-    }
+  #if HAS_X_MIN
+    #if (digitalPinToInterrupt(X_MIN_PIN) != NOT_AN_INTERRUPT)
+      attachInterrupt(digitalPinToInterrupt(X_MIN_PIN), endstop_ISR, CHANGE);
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(X_MIN_PIN) != NULL, "X_MIN_PIN is not interrupt-capable");
+      pciSetup(X_MIN_PIN);
+    #endif
   #endif
 
-  #ifdef PCINT1_vect
-    ISR(PCINT1_vect) { // handle pin change interrupt
-      endstop_ISR_worker();
-    }
+  #if HAS_Y_MAX
+    #if (digitalPinToInterrupt(Y_MAX_PIN) != NOT_AN_INTERRUPT)
+      attachInterrupt(digitalPinToInterrupt(Y_MAX_PIN), endstop_ISR, CHANGE);
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(Y_MAX_PIN) != NULL, "Y_MAX_PIN is not interrupt-capable");
+      pciSetup(Y_MAX_PIN);
+    #endif
   #endif
 
-  #ifdef PCINT2_vect
-    ISR(PCINT2_vect) { // handle pin change interrupt
-      endstop_ISR_worker();
-    }
+  #if HAS_Y_MIN
+    #if (digitalPinToInterrupt(Y_MIN_PIN) != NOT_AN_INTERRUPT)
+      attachInterrupt(digitalPinToInterrupt(Y_MIN_PIN), endstop_ISR, CHANGE);
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(Y_MIN_PIN) != NULL, "Y_MIN_PIN is not interrupt-capable");
+      pciSetup(Y_MIN_PIN);
+    #endif
   #endif
 
-  #ifdef PCINT3_vect
-    ISR(PCINT3_vect) { // handle pin change interrupt
-      endstop_ISR_worker();
-    }
+  #if HAS_Z_MAX
+    #if (digitalPinToInterrupt(Z_MAX_PIN) != NOT_AN_INTERRUPT)
+      attachInterrupt(digitalPinToInterrupt(Z_MAX_PIN), endstop_ISR, CHANGE);
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(Z_MAX_PIN) != NULL, "Z_MAX_PIN is not interrupt-capable");
+      pciSetup(Z_MAX_PIN);
+    #endif
   #endif
 
-  void setup_enstop_interrupts( void ) {
-
-    #if HAS_X_MAX
-      #if (digitalPinToInterrupt(X_MAX_PIN) != NOT_AN_INTERRUPT) // if pin has an external interrupt
-        attachInterrupt(digitalPinToInterrupt(X_MAX_PIN), endstop_ISR, CHANGE); // assign it
-      #else
-        // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
-        static_assert(digitalPinToPCICR(X_MAX_PIN) != NULL, "ENDSTOP_INTERRUPT_ERROR"); // if pin has no pin change interrupt - error
-        pciSetup(X_MAX_PIN);                                                            // assign it
-      #endif
+  #if HAS_Z_MIN
+    #if (digitalPinToInterrupt(Z_MIN_PIN) != NOT_AN_INTERRUPT)
+      attachInterrupt(digitalPinToInterrupt(Z_MIN_PIN), endstop_ISR, CHANGE);
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(Z_MIN_PIN) != NULL, "Z_MIN_PIN is not interrupt-capable");
+      pciSetup(Z_MIN_PIN);
     #endif
+  #endif
 
-    #if HAS_X_MIN
-      #if (digitalPinToInterrupt(X_MIN_PIN) != NOT_AN_INTERRUPT)
-        attachInterrupt(digitalPinToInterrupt(X_MIN_PIN), endstop_ISR, CHANGE);
-      #else
-        // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
-        static_assert(digitalPinToPCICR(X_MIN_PIN) != NULL, "ENDSTOP_INTERRUPT_ERROR");
-        pciSetup(X_MIN_PIN);
-      #endif
+  #if HAS_Z2_MAX
+    #if (digitalPinToInterrupt(Z2_MAX_PIN) != NOT_AN_INTERRUPT)
+      attachInterrupt(digitalPinToInterrupt(Z2_MAX_PIN), endstop_ISR, CHANGE);
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(Z2_MAX_PIN) != NULL, "Z2_MAX_PIN is not interrupt-capable");
+      pciSetup(Z2_MAX_PIN);
     #endif
+  #endif
 
-    #if HAS_Y_MAX
-      #if (digitalPinToInterrupt(Y_MAX_PIN) != NOT_AN_INTERRUPT)
-        attachInterrupt(digitalPinToInterrupt(Y_MAX_PIN), endstop_ISR, CHANGE);
-      #else
-        // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
-        static_assert(digitalPinToPCICR(Y_MAX_PIN) != NULL, "ENDSTOP_INTERRUPT_ERROR");
-        pciSetup(Y_MAX_PIN);
-      #endif
+  #if HAS_Z2_MIN
+    #if (digitalPinToInterrupt(Z2_MIN_PIN) != NOT_AN_INTERRUPT)
+      attachInterrupt(digitalPinToInterrupt(Z2_MIN_PIN), endstop_ISR, CHANGE);
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(Z2_MIN_PIN) != NULL, "Z2_MIN_PIN is not interrupt-capable");
+      pciSetup(Z2_MIN_PIN);
     #endif
+  #endif
 
-    #if HAS_Y_MIN
-      #if (digitalPinToInterrupt(Y_MIN_PIN) != NOT_AN_INTERRUPT)
-        attachInterrupt(digitalPinToInterrupt(Y_MIN_PIN), endstop_ISR, CHANGE);
-      #else
-        // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
-        static_assert(digitalPinToPCICR(Y_MIN_PIN) != NULL, "ENDSTOP_INTERRUPT_ERROR");
-        pciSetup(Y_MIN_PIN);
-      #endif
+  #if HAS_Z_MIN_PROBE_PIN
+    #if (digitalPinToInterrupt(Z_MIN_PROBE_PIN) != NOT_AN_INTERRUPT)
+      attachInterrupt(digitalPinToInterrupt(Z_MIN_PROBE_PIN), endstop_ISR, CHANGE);
+    #else
+      // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
+      static_assert(digitalPinToPCICR(Z_MIN_PROBE_PIN) != NULL, "Z_MIN_PROBE_PIN is not interrupt-capable");
+      pciSetup(Z_MIN_PROBE_PIN);
     #endif
+  #endif
 
-    #if HAS_Z_MAX
-      #if (digitalPinToInterrupt(Z_MAX_PIN) != NOT_AN_INTERRUPT)
-        attachInterrupt(digitalPinToInterrupt(Z_MAX_PIN), endstop_ISR, CHANGE);
-      #else
-        // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
-        static_assert(digitalPinToPCICR(Z_MAX_PIN) != NULL, "ENDSTOP_INTERRUPT_ERROR");
-        pciSetup(Z_MAX_PIN);
-      #endif
-    #endif
-
-    #if HAS_Z_MIN
-      #if (digitalPinToInterrupt(Z_MIN_PIN) != NOT_AN_INTERRUPT)
-        attachInterrupt(digitalPinToInterrupt(Z_MIN_PIN), endstop_ISR, CHANGE);
-      #else
-        // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
-        static_assert(digitalPinToPCICR(Z_MIN_PIN) != NULL, "ENDSTOP_INTERRUPT_ERROR");
-        pciSetup(Z_MIN_PIN);
-      #endif
-    #endif
-
-    #if HAS_Z2_MAX
-      #if (digitalPinToInterrupt(Z2_MAX_PIN) != NOT_AN_INTERRUPT)
-        attachInterrupt(digitalPinToInterrupt(Z2_MAX_PIN), endstop_ISR, CHANGE);
-      #else
-        // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
-        static_assert(digitalPinToPCICR(Z2_MAX_PIN) != NULL, "ENDSTOP_INTERRUPT_ERROR");
-        pciSetup(Z2_MAX_PIN);
-      #endif
-    #endif
-
-    #if HAS_Z2_MIN
-      #if (digitalPinToInterrupt(Z2_MIN_PIN) != NOT_AN_INTERRUPT)
-        attachInterrupt(digitalPinToInterrupt(Z2_MIN_PIN), endstop_ISR, CHANGE);
-      #else
-        // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
-        static_assert(digitalPinToPCICR(Z2_MIN_PIN) != NULL, "ENDSTOP_INTERRUPT_ERROR");
-        pciSetup(Z2_MIN_PIN);
-      #endif
-    #endif
-
-    #if HAS_Z_MIN_PROBE_PIN
-      #if (digitalPinToInterrupt(Z_MIN_PROBE_PIN) != NOT_AN_INTERRUPT)
-        attachInterrupt(digitalPinToInterrupt(Z_MIN_PROBE_PIN), endstop_ISR, CHANGE);
-      #else
-        // Not all used endstop/probe -pins can raise interrupts. Please deactivate ENDSTOP_INTERRUPTS or change the pin configuration!
-        static_assert(digitalPinToPCICR(Z_MIN_PROBE_PIN) != NULL, "ENDSTOP_INTERRUPT_ERROR");
-        pciSetup(Z_MIN_PROBE_PIN);
-      #endif
-    #endif
-
-    // When we arive here without error each pin has ether a EXT-interrupt or a PCI.
-  }
-
+  // If we arrive here without raising an assertion, each pin has either an EXT-interrupt or a PCI.
+}
 
 #endif //_ENDSTOP_INTERRUPTS_H_
diff --git a/Marlin/example_configurations/Cartesio/Configuration.h b/Marlin/example_configurations/Cartesio/Configuration.h
index 107132aad..beff3e661 100644
--- a/Marlin/example_configurations/Cartesio/Configuration.h
+++ b/Marlin/example_configurations/Cartesio/Configuration.h
@@ -201,55 +201,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 -1
 #define TEMP_SENSOR_1 -1
 #define TEMP_SENSOR_2 1
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 1
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -445,8 +454,8 @@
 #define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/Felix/Configuration.h b/Marlin/example_configurations/Felix/Configuration.h
index 6fa394538..a7901df4a 100644
--- a/Marlin/example_configurations/Felix/Configuration.h
+++ b/Marlin/example_configurations/Felix/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 1
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -427,8 +436,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/Felix/DUAL/Configuration.h b/Marlin/example_configurations/Felix/DUAL/Configuration.h
index 34ffdbfba..47942e610 100644
--- a/Marlin/example_configurations/Felix/DUAL/Configuration.h
+++ b/Marlin/example_configurations/Felix/DUAL/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 1
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 1
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -427,8 +436,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/Hephestos/Configuration.h b/Marlin/example_configurations/Hephestos/Configuration.h
index fba7318ad..6499466eb 100644
--- a/Marlin/example_configurations/Hephestos/Configuration.h
+++ b/Marlin/example_configurations/Hephestos/Configuration.h
@@ -203,55 +203,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 0
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -437,8 +446,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/Hephestos_2/Configuration.h b/Marlin/example_configurations/Hephestos_2/Configuration.h
index d26986eca..0349dd1e4 100644
--- a/Marlin/example_configurations/Hephestos_2/Configuration.h
+++ b/Marlin/example_configurations/Hephestos_2/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 70
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 0
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -439,8 +448,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/K8200/Configuration.h b/Marlin/example_configurations/K8200/Configuration.h
index 424d786d3..b5a806770 100644
--- a/Marlin/example_configurations/K8200/Configuration.h
+++ b/Marlin/example_configurations/K8200/Configuration.h
@@ -207,55 +207,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 5
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 5
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -462,8 +471,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/K8400/Configuration.h b/Marlin/example_configurations/K8400/Configuration.h
index 43bef5ad5..c3096703e 100644
--- a/Marlin/example_configurations/K8400/Configuration.h
+++ b/Marlin/example_configurations/K8400/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 5
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 0
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -445,8 +454,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/K8400/Dual-head/Configuration.h b/Marlin/example_configurations/K8400/Dual-head/Configuration.h
index 61e6c454d..b3b75ba4c 100644
--- a/Marlin/example_configurations/K8400/Dual-head/Configuration.h
+++ b/Marlin/example_configurations/K8400/Dual-head/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 5
 #define TEMP_SENSOR_1 5
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 0
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -445,8 +454,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h b/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
index 12f7ac8b1..6ea7806a1 100644
--- a/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
+++ b/Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 1
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -445,8 +454,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/RigidBot/Configuration.h b/Marlin/example_configurations/RigidBot/Configuration.h
index c41ca134b..cda18275a 100644
--- a/Marlin/example_configurations/RigidBot/Configuration.h
+++ b/Marlin/example_configurations/RigidBot/Configuration.h
@@ -203,55 +203,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 1 // DGlass3D = 5; RigidBot = 1; 3DSv6 = 5
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 1
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 //#define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -442,8 +451,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/SCARA/Configuration.h b/Marlin/example_configurations/SCARA/Configuration.h
index 31b9d5559..193c9ef1a 100644
--- a/Marlin/example_configurations/SCARA/Configuration.h
+++ b/Marlin/example_configurations/SCARA/Configuration.h
@@ -232,55 +232,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 1
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -460,8 +469,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/TAZ4/Configuration.h b/Marlin/example_configurations/TAZ4/Configuration.h
index c056168b1..e963f2cde 100644
--- a/Marlin/example_configurations/TAZ4/Configuration.h
+++ b/Marlin/example_configurations/TAZ4/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 7
 #define TEMP_SENSOR_1 7
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 7
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -466,8 +475,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/WITBOX/Configuration.h b/Marlin/example_configurations/WITBOX/Configuration.h
index 1ede76f5f..598b7535a 100644
--- a/Marlin/example_configurations/WITBOX/Configuration.h
+++ b/Marlin/example_configurations/WITBOX/Configuration.h
@@ -203,55 +203,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 0
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -437,8 +446,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/adafruit/ST7565/Configuration.h b/Marlin/example_configurations/adafruit/ST7565/Configuration.h
index 429c4efc2..e2c048905 100644
--- a/Marlin/example_configurations/adafruit/ST7565/Configuration.h
+++ b/Marlin/example_configurations/adafruit/ST7565/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 0
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -445,8 +454,8 @@
 #define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/delta/biv2.5/Configuration.h b/Marlin/example_configurations/delta/biv2.5/Configuration.h
index 8c1c508f9..7151a9f3e 100644
--- a/Marlin/example_configurations/delta/biv2.5/Configuration.h
+++ b/Marlin/example_configurations/delta/biv2.5/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 5
 #define TEMP_SENSOR_1 5
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 1
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -489,8 +498,8 @@
 #define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/delta/generic/Configuration.h b/Marlin/example_configurations/delta/generic/Configuration.h
index e0023377d..962d68fea 100644
--- a/Marlin/example_configurations/delta/generic/Configuration.h
+++ b/Marlin/example_configurations/delta/generic/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 -1
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 0
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -489,8 +498,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/delta/kossel_mini/Configuration.h b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
index 838785466..71bd83115 100644
--- a/Marlin/example_configurations/delta/kossel_mini/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_mini/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 7
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 11
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 5
 
@@ -489,8 +498,8 @@
 #define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/delta/kossel_pro/Configuration.h b/Marlin/example_configurations/delta/kossel_pro/Configuration.h
index 73289f88f..36ad235b9 100644
--- a/Marlin/example_configurations/delta/kossel_pro/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_pro/Configuration.h
@@ -206,55 +206,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 5
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 5
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -478,8 +487,8 @@
 #define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/delta/kossel_xl/Configuration.h b/Marlin/example_configurations/delta/kossel_xl/Configuration.h
index dec2c11a0..40a8958ca 100644
--- a/Marlin/example_configurations/delta/kossel_xl/Configuration.h
+++ b/Marlin/example_configurations/delta/kossel_xl/Configuration.h
@@ -193,55 +193,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 5
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 5
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -487,8 +496,8 @@
 #define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/makibox/Configuration.h b/Marlin/example_configurations/makibox/Configuration.h
index 0f28212e5..da27397ca 100644
--- a/Marlin/example_configurations/makibox/Configuration.h
+++ b/Marlin/example_configurations/makibox/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 1
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 12
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -448,8 +457,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/example_configurations/tvrrug/Round2/Configuration.h b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
index 95a5e87d4..47f5ec658 100644
--- a/Marlin/example_configurations/tvrrug/Round2/Configuration.h
+++ b/Marlin/example_configurations/tvrrug/Round2/Configuration.h
@@ -200,55 +200,64 @@
 //===========================================================================
 //============================= Thermal Settings ============================
 //===========================================================================
-//
-//--NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
-//
-//// Temperature sensor settings:
-// -3 is thermocouple with MAX31855 (only for sensor 0)
-// -2 is thermocouple with MAX6675 (only for sensor 0)
-// -1 is thermocouple with AD595
-// 0 is not used
-// 1 is 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
-// 2 is 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
-// 3 is Mendel-parts thermistor (4.7k pullup)
-// 4 is 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
-// 5 is 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
-// 6 is 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
-// 7 is 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
-// 71 is 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
-// 8 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
-// 9 is 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
-// 10 is 100k RS thermistor 198-961 (4.7k pullup)
-// 11 is 100k beta 3950 1% thermistor (4.7k pullup)
-// 12 is 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
-// 13 is 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
-// 20 is the PT100 circuit found in the Ultimainboard V2.x
-// 60 is 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
-// 66 is 4.7M High Temperature thermistor from Dyze Design
-// 70 is the 100K thermistor found in the bq Hephestos 2
-//
-//    1k ohm pullup tables - This is not normal, you would have to have changed out your 4.7k for 1k
-//                          (but gives greater accuracy and more stable PID)
-// 51 is 100k thermistor - EPCOS (1k pullup)
-// 52 is 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
-// 55 is 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
-//
-// 1047 is Pt1000 with 4k7 pullup
-// 1010 is Pt1000 with 1k pullup (non standard)
-// 147 is Pt100 with 4k7 pullup
-// 110 is Pt100 with 1k pullup (non standard)
-// 998 and 999 are Dummy Tables. They will ALWAYS read 25°C or the temperature defined below.
-//     Use it for Testing or Development purposes. NEVER for production machine.
-//#define DUMMY_THERMISTOR_998_VALUE 25
-//#define DUMMY_THERMISTOR_999_VALUE 100
-// :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+
+/**
+ * --NORMAL IS 4.7kohm PULLUP!-- 1kohm pullup can be used on hotend sensor, using correct resistor and table
+ * 
+ * Temperature sensors available:
+ *
+ *    -3 : thermocouple with MAX31855 (only for sensor 0)
+ *    -2 : thermocouple with MAX6675 (only for sensor 0)
+ *    -1 : thermocouple with AD595
+ *     0 : not used
+ *     1 : 100k thermistor - best choice for EPCOS 100k (4.7k pullup)
+ *     2 : 200k thermistor - ATC Semitec 204GT-2 (4.7k pullup)
+ *     3 : Mendel-parts thermistor (4.7k pullup)
+ *     4 : 10k thermistor !! do not use it for a hotend. It gives bad resolution at high temp. !!
+ *     5 : 100K thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (4.7k pullup)
+ *     6 : 100k EPCOS - Not as accurate as table 1 (created using a fluke thermocouple) (4.7k pullup)
+ *     7 : 100k Honeywell thermistor 135-104LAG-J01 (4.7k pullup)
+ *    71 : 100k Honeywell thermistor 135-104LAF-J01 (4.7k pullup)
+ *     8 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup)
+ *     9 : 100k GE Sensing AL03006-58.2K-97-G1 (4.7k pullup)
+ *    10 : 100k RS thermistor 198-961 (4.7k pullup)
+ *    11 : 100k beta 3950 1% thermistor (4.7k pullup)
+ *    12 : 100k 0603 SMD Vishay NTCS0603E3104FXT (4.7k pullup) (calibrated for Makibox hot bed)
+ *    13 : 100k Hisens 3950  1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
+ *    20 : the PT100 circuit found in the Ultimainboard V2.x
+ *    60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
+ *    66 : 4.7M High Temperature thermistor from Dyze Design
+ *    70 : the 100K thermistor found in the bq Hephestos 2
+ * 
+ *       1k ohm pullup tables - This is atypical, and requires changing out the 4.7k pullup for 1k.
+ *                              (but gives greater accuracy and more stable PID)
+ *    51 : 100k thermistor - EPCOS (1k pullup)
+ *    52 : 200k thermistor - ATC Semitec 204GT-2 (1k pullup)
+ *    55 : 100k thermistor - ATC Semitec 104GT-2 (Used in ParCan & J-Head) (1k pullup)
+ * 
+ *  1047 : Pt1000 with 4k7 pullup
+ *  1010 : Pt1000 with 1k pullup (non standard)
+ *   147 : Pt100 with 4k7 pullup
+ *   110 : Pt100 with 1k pullup (non standard)
+ *
+ *         Use these for Testing or Development purposes. NEVER for production machine.
+ *   998 : Dummy Table that ALWAYS reads 25°C or the temperature defined below.
+ *   999 : Dummy Table that ALWAYS reads 100°C or the temperature defined below.
+ *
+ * :{ '0': "Not used", '1':"100k / 4.7k - EPCOS", '2':"200k / 4.7k - ATC Semitec 204GT-2", '3':"Mendel-parts / 4.7k", '4':"10k !! do not use for a hotend. Bad resolution at high temp. !!", '5':"100K / 4.7k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '6':"100k / 4.7k EPCOS - Not as accurate as Table 1", '7':"100k / 4.7k Honeywell 135-104LAG-J01", '8':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT", '9':"100k / 4.7k GE Sensing AL03006-58.2K-97-G1", '10':"100k / 4.7k RS 198-961", '11':"100k / 4.7k beta 3950 1%", '12':"100k / 4.7k 0603 SMD Vishay NTCS0603E3104FXT (calibrated for Makibox hot bed)", '13':"100k Hisens 3950  1% up to 300°C for hotend 'Simple ONE ' & hotend 'All In ONE'", '20':"PT100 (Ultimainboard V2.x)", '51':"100k / 1k - EPCOS", '52':"200k / 1k - ATC Semitec 204GT-2", '55':"100k / 1k - ATC Semitec 104GT-2 (Used in ParCan & J-Head)", '60':"100k Maker's Tool Works Kapton Bed Thermistor beta=3950", '66':"Dyze Design 4.7M High Temperature thermistor", '70':"the 100K thermistor found in the bq Hephestos 2", '71':"100k / 4.7k Honeywell 135-104LAF-J01", '147':"Pt100 / 4.7k", '1047':"Pt1000 / 4.7k", '110':"Pt100 / 1k (non-standard)", '1010':"Pt1000 / 1k (non standard)", '-3':"Thermocouple + MAX31855 (only for sensor 0)", '-2':"Thermocouple + MAX6675 (only for sensor 0)", '-1':"Thermocouple + AD595",'998':"Dummy 1", '999':"Dummy 2" }
+ */
 #define TEMP_SENSOR_0 5
 #define TEMP_SENSOR_1 0
 #define TEMP_SENSOR_2 0
 #define TEMP_SENSOR_3 0
 #define TEMP_SENSOR_BED 5
 
-// This makes temp sensor 1 a redundant sensor for sensor 0. If the temperatures difference between these sensors is to high the print will be aborted.
+// Dummy thermistor constant temperature readings, for use with 998 and 999
+#define DUMMY_THERMISTOR_998_VALUE 25
+#define DUMMY_THERMISTOR_999_VALUE 100
+
+// Use temp sensor 1 as a redundant sensor with sensor 0. If the readings
+// from the two sensors differ too much the print will be aborted.
 //#define TEMP_SENSOR_1_AS_REDUNDANT
 #define MAX_REDUNDANT_TEMP_SENSOR_DIFF 10
 
@@ -435,8 +444,8 @@
 #define Z_MAX_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 #define Z_MIN_PROBE_ENDSTOP_INVERTING true  // set to true to invert the logic of the endstop.
 
-// If all used endstop pins are able to cause interrupts, you can enable ENDSTOP_INTERRUPTS_FEATURE.
-// Then the function testing the endstops will only be called, if the state of one of the endstops changed.
+// Enable this feature if all enabled endstop pins are interrupt-capable.
+// This will remove the need to poll the interrupt pins, saving many CPU cycles.
 //#define ENDSTOP_INTERRUPTS_FEATURE
 
 //=============================================================================
diff --git a/Marlin/stepper.cpp b/Marlin/stepper.cpp
index 9f712faad..7e0c744f1 100644
--- a/Marlin/stepper.cpp
+++ b/Marlin/stepper.cpp
@@ -378,19 +378,21 @@ void Stepper::isr() {
   }
 
   // Update endstops state, if enabled
-  if (endstops.enabled
+  if ((endstops.enabled
     #if HAS_BED_PROBE
       || endstops.z_probe_enabled
     #endif
-  )
-  #if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
-    if(e_hit) {
-  #endif
-      endstops.update();
-  #if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
+    )
+    #if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
+      && e_hit
+    #endif
+  ) {
+    endstops.update();
+
+    #if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
       e_hit--;
-    }
-  #endif
+    #endif
+  }
 
   // Take multiple steps per interrupt (For high speed moves)
   bool all_steps_done = false;