Firmware2/Marlin/src/gcode/feature/camera/M240.cpp

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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
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#include "../../../inc/MarlinConfig.h"
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#if PIN_EXISTS(CHDK) || HAS_PHOTOGRAPH
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#include "../../gcode.h"
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bool chdk_active; // = false
millis_t chdk_timeout;
/**
* M240: Trigger a camera by emulating a Canon RC-1
* See http://www.doc-diy.net/photo/rc-1_hacked/
*/
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void GcodeSuite::M240() {
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#if PIN_EXISTS(CHDK)
OUT_WRITE(CHDK_PIN, HIGH);
chdk_timeout = millis() + CHDK_DELAY;
chdk_active = true;
#elif HAS_PHOTOGRAPH
const uint8_t NUM_PULSES = 16;
const float PULSE_LENGTH = 0.01524;
for (int i = 0; i < NUM_PULSES; i++) {
WRITE(PHOTOGRAPH_PIN, HIGH);
_delay_ms(PULSE_LENGTH);
WRITE(PHOTOGRAPH_PIN, LOW);
_delay_ms(PULSE_LENGTH);
}
delay(7.33);
for (int i = 0; i < NUM_PULSES; i++) {
WRITE(PHOTOGRAPH_PIN, HIGH);
_delay_ms(PULSE_LENGTH);
WRITE(PHOTOGRAPH_PIN, LOW);
_delay_ms(PULSE_LENGTH);
}
#endif
}
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#endif // CHDK_PIN || HAS_PHOTOGRAPH