Inital commit

.gitignore

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+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

.travis.yml

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+# Continuous Integration (CI) is the practice, in software
+# engineering, of merging all developer working copies with a shared mainline
+# several times a day < https://docs.platformio.org/page/ci/index.html >
+#
+# Documentation:
+#
+# * Travis CI Embedded Builds with PlatformIO
+#   < https://docs.travis-ci.com/user/integration/platformio/ >
+#
+# * PlatformIO integration with Travis CI
+#   < https://docs.platformio.org/page/ci/travis.html >
+#
+# * User Guide for `platformio ci` command
+#   < https://docs.platformio.org/page/userguide/cmd_ci.html >
+#
+#
+# Please choose one of the following templates (proposed below) and uncomment
+# it (remove "# " before each line) or use own configuration according to the
+# Travis CI documentation (see above).
+#
+
+
+#
+# Template #1: General project. Test it using existing `platformio.ini`.
+#
+
+# language: python
+# python:
+#     - "2.7"
+#
+# sudo: false
+# cache:
+#     directories:
+#         - "~/.platformio"
+#
+# install:
+#     - pip install -U platformio
+#     - platformio update
+#
+# script:
+#     - platformio run
+
+
+#
+# Template #2: The project is intended to be used as a library with examples.
+#
+
+# language: python
+# python:
+#     - "2.7"
+#
+# sudo: false
+# cache:
+#     directories:
+#         - "~/.platformio"
+#
+# env:
+#     - PLATFORMIO_CI_SRC=path/to/test/file.c
+#     - PLATFORMIO_CI_SRC=examples/file.ino
+#     - PLATFORMIO_CI_SRC=path/to/test/directory
+#
+# install:
+#     - pip install -U platformio
+#     - platformio update
+#
+# script:
+#     - platformio ci --lib="." --board=ID_1 --board=ID_2 --board=ID_N

.vscode/extensions.json

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+{
+	// See http://go.microsoft.com/fwlink/?LinkId=827846
+	// for the documentation about the extensions.json format
+	"recommendations": [
+		"platformio.platformio-ide"
+	]
+}

.vscode/settings.json

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+{
+	"terminal.integrated.env.windows": {
+		"PATH": "C:\\Users\\Thomas\\.platformio\\penv\\Scripts;C:\\Users\\Thomas\\.platformio\\penv;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\iCLS\\;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\iCLS\\;C:\\Windows\\System32;C:\\Windows;C:\\Windows\\System32\\wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\DAL;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\DAL;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\IPT;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\IPT;C:\\Program Files (x86)\\GnuPG\\bin;C:\\Windows\\System32\\OpenSSH\\;C:\\Program Files (x86)\\Calibre2\\;C:\\Program Files\\TortoiseSVN\\bin;C:\\Program Files\\Microsoft VS Code\\bin;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\;C:\\WINDOWS\\System32\\OpenSSH\\;C:\\Users\\Thomas\\AppData\\Local\\Microsoft\\WindowsApps;C:\\Program Files\\Microsoft VS Code\\bin;C:\\Program Files (x86)\\Nmap;C:\\Program Files\\Git\\bin;;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\iCLS\\;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\iCLS\\;C:\\Windows\\System32;C:\\Windows;C:\\Windows\\System32\\wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\DAL;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\DAL;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\IPT;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\IPT;C:\\Program Files (x86)\\GnuPG\\bin;C:\\Windows\\System32\\OpenSSH\\;C:\\Program Files (x86)\\Calibre2\\;C:\\Program Files\\TortoiseSVN\\bin;C:\\Program Files\\Microsoft VS Code\\bin;C:\\WINDOWS\\system32;C:\\WINDOWS;C:\\WINDOWS\\System32\\Wbem;C:\\WINDOWS\\System32\\WindowsPowerShell\\v1.0\\;C:\\WINDOWS\\System32\\OpenSSH\\;C:\\Users\\Thomas\\AppData\\Local\\Microsoft\\WindowsApps;C:\\Program Files\\Microsoft VS Code\\bin;C:\\Program Files (x86)\\Nmap;C:\\Program Files\\Git\\bin;",
+		"PLATFORMIO_CALLER": "vscode"
+	}
+}

include/README

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+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

lib/README

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+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

platformio.ini

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+;PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:esp32]
+platform = espressif32
+board = esp32dev
+framework = arduino
+upload_port = COM7
+board_build.partitions = no_ota.csv
+
+lib_deps =
+	https://github.com/me-no-dev/AsyncTCP
+	ESP Async WebServer
+	ESP-DASH
+	ArduinoJson
+	Button2
+	BH1750
+	Adafruit BME280 Library
+	Adafruit Unified Sensor
+	DHT sensor library

src/main.cpp

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+#include "Adafruit_Sensor.h"
+#include "DHT.h"
+#include "DHT_U.h"
+#include "esp_wifi.h"
+#include <Adafruit_BME280.h>
+#include <Arduino.h>
+#include <AsyncTCP.h>
+#include <BH1750.h>
+#include <Button2.h>
+#include <ESPAsyncWebServer.h>
+#include <ESPDash.h>
+#include <ESPmDNS.h>
+#include <WiFi.h>
+#include <WiFiMulti.h>
+#include <Wire.h>
+#include <algorithm>
+#include <iostream>
+
+#define I2C_SDA 25
+#define I2C_SCL 26
+#define DHT12_PIN 16
+#define BAT_ADC 33
+#define SALT_PIN 34
+#define SOIL_PIN 32
+#define BOOT_PIN 0
+#define POWER_CTRL 4
+#define USER_BUTTON 35
+
+BH1750 lightMeter(0x23); //0x23
+Adafruit_BME280 bmp; //0x77
+
+DHT_Unified dht(DHT12_PIN, DHT11);
+
+AsyncWebServer server(80);
+Button2 button(BOOT_PIN);
+Button2 useButton(USER_BUTTON);
+WiFiMulti multi;
+
+#define WIFI_SSID "mqtt.binary-kitchen.de"
+#define WIFI_PASSWD "test1234"
+
+bool bme_found = false;
+
+void smartConfigStart(Button2& b)
+{
+    Serial.println("smartConfigStart...");
+    WiFi.disconnect();
+    WiFi.beginSmartConfig();
+    while (!WiFi.smartConfigDone()) {
+        Serial.print(".");
+        delay(200);
+    }
+    WiFi.stopSmartConfig();
+    Serial.println();
+    Serial.print("smartConfigStop Connected:");
+    Serial.print(WiFi.SSID());
+    Serial.print("PSW: ");
+    Serial.println(WiFi.psk());
+}
+
+void sleepHandler(Button2& b)
+{
+    Serial.println("Enter Deepsleep ...");
+    esp_sleep_enable_ext1_wakeup(GPIO_SEL_35, ESP_EXT1_WAKEUP_ALL_LOW);
+    delay(1000);
+    esp_deep_sleep_start();
+}
+
+bool serverBegin()
+{
+    static bool isBegin = false;
+    if (isBegin) {
+        return true;
+    }
+
+    ESPDash.init(server);
+
+    isBegin = true;
+    if (MDNS.begin("soil")) {
+        Serial.println("MDNS responder started");
+    }
+    // Add Respective Cards
+    if (bme_found) {
+        ESPDash.addTemperatureCard("temp", "BME Temperature/C", 0, 0);
+        ESPDash.addNumberCard("press", "BME Pressure/hPa", 0);
+        ESPDash.addNumberCard("alt", "BME Altitude/m", 0);
+    }
+
+    ESPDash.addTemperatureCard("temp2", "DHT Temperature/C", 0, 0);
+    ESPDash.addHumidityCard("hum2", "DHT Humidity/%", 0);
+    ESPDash.addNumberCard("lux", "BH1750/lx", 0);
+    ESPDash.addHumidityCard("soil", "Soil", 0);
+    ESPDash.addNumberCard("salt", "Salt", 0);
+    ESPDash.addNumberCard("batt", "Battery/mV", 0);
+    server.begin();
+    MDNS.addService("http", "tcp", 80);
+    return true;
+}
+
+void setup()
+{
+    Serial.begin(115200);
+    WiFi.mode(WIFI_STA);
+
+    wifi_config_t current_conf;
+    esp_wifi_get_config(WIFI_IF_STA, &current_conf);
+    int ssidlen = strlen((char*)(current_conf.sta.ssid));
+    int passlen = strlen((char*)(current_conf.sta.password));
+
+    if (false && (ssidlen == 0 || passlen == 0)) {
+        multi.addAP(WIFI_SSID, WIFI_PASSWD);
+        Serial.println("Connect to defalut ssid, you can long press BOOT button enter smart config mode");
+        while (multi.run() != WL_CONNECTED) {
+            Serial.print('.');
+        }
+    } else {
+        WiFi.begin(WIFI_SSID, WIFI_PASSWD);
+    }
+
+    if (WiFi.waitForConnectResult() != WL_CONNECTED) {
+        Serial.printf("WiFi connect fail!,please restart retry,or long press BOOT button enter smart config mode\n");
+    }
+    if (WiFi.status() == WL_CONNECTED) {
+        Serial.print("IP Address: ");
+        Serial.println(WiFi.localIP());
+    }
+
+    button.setLongClickHandler(smartConfigStart);
+    useButton.setLongClickHandler(sleepHandler);
+
+    Wire.begin(I2C_SDA, I2C_SCL);
+
+    dht.begin();
+
+    //! Sensor power control pin , use deteced must set high
+    pinMode(POWER_CTRL, OUTPUT);
+    digitalWrite(POWER_CTRL, 1);
+    delay(1000);
+
+    if (!bmp.begin()) {
+        Serial.println(F("Could not find a valid BMP280 sensor, check wiring!"));
+        bme_found = false;
+    } else {
+        bme_found = true;
+    }
+
+    if (lightMeter.begin(BH1750::CONTINUOUS_HIGH_RES_MODE)) {
+        Serial.println(F("BH1750 Advanced begin"));
+    } else {
+        Serial.println(F("Error initialising BH1750"));
+    }
+}
+
+uint32_t readSalt()
+{
+    uint8_t samples = 120;
+    uint32_t humi = 0;
+    uint16_t array[120];
+
+    for (int i = 0; i < samples; i++) {
+        array[i] = analogRead(SALT_PIN);
+        delay(2);
+    }
+    std::sort(array, array + samples);
+    for (int i = 0; i < samples; i++) {
+        if (i == 0 || i == samples - 1)
+            continue;
+        humi += array[i];
+    }
+    humi /= samples - 2;
+    return humi;
+}
+
+uint16_t readSoil()
+{
+    uint16_t soil = analogRead(SOIL_PIN);
+    return map(soil, 0, 4095, 100, 0);
+}
+
+float readBattery()
+{
+    int vref = 1100;
+    uint16_t volt = analogRead(BAT_ADC);
+    float battery_voltage = ((float)volt / 4095.0) * 2.0 * 3.3 * (vref);
+    return battery_voltage;
+}
+
+void loop()
+{
+    static uint64_t timestamp;
+    button.loop();
+    useButton.loop();
+    if (millis() - timestamp > 1000) {
+        timestamp = millis();
+        if (WiFi.status() == WL_CONNECTED) {
+            if (serverBegin()) {
+                float lux = lightMeter.readLightLevel();
+
+                if (bme_found) {
+                    float bme_temp = bmp.readTemperature();
+                    float bme_pressure = (bmp.readPressure() / 100.0F);
+                    float bme_altitude = bmp.readAltitude(1013.25);
+                    ESPDash.updateTemperatureCard("temp", (int)bme_temp);
+                    ESPDash.updateNumberCard("press", (int)bme_pressure);
+                    ESPDash.updateNumberCard("alt", (int)bme_altitude);
+                }
+
+                sensors_event_t event;
+                dht.temperature().getEvent(&event);
+                float t12 = event.temperature;
+                // Read temperature as Fahrenheit (isFahrenheit = true)
+                dht.humidity().getEvent(&event);
+                float h12 = event.relative_humidity;
+
+                if (!isnan(t12) && !isnan(h12)) {
+                    ESPDash.updateTemperatureCard("temp2", (int)t12);
+                    ESPDash.updateHumidityCard("hum2", (int)h12);
+                }
+                ESPDash.updateNumberCard("lux", (int)lux);
+
+                uint16_t soil = readSoil();
+                uint32_t salt = readSalt();
+                float bat = readBattery();
+                ESPDash.updateHumidityCard("soil", (int)soil);
+                ESPDash.updateNumberCard("salt", (int)salt);
+                ESPDash.updateNumberCard("batt", (int)bat);
+
+                Serial.printf("DHTT:%.2f H:%.2f Lux:%.2f Soil:%u Salt:%u Bat:%.2f\n",
+                    t12, h12, lux, soil, salt, bat);
+            }
+        }
+    }
+}

test/README

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+
+This directory is intended for PIO Unit Testing and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PIO Unit Testing:
+- https://docs.platformio.org/page/plus/unit-testing.html