102 lines
1.8 KiB
C++
102 lines
1.8 KiB
C++
/*
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Control a camera with a single relay that
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triggers a shutter release.
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Hardware
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Arduino Nano
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Relay module
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LED
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480 Ohm resistor
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Wiring
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CAMERA
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Wire directly to corresponding relay pins.
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Arduino 2 5V GND
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Relay 1 VCC GND
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*/
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#include "McopySerial.h"
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//CAMERA CONSTANTS
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const int CAMERA = 2;
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const int BUTTON = 7;
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const int LED = 8;
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const int CAMERA_MOMENT = 240;
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//VARIABLES
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volatile int cameraFrame = 1200;
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volatile char cmdChar = 'z';
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volatile long now;
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McopySerial mc;
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void setup () {
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pins();
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digitalWrite(LED, HIGH);
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mc.begin(mc.CAMERA_IDENTIFIER);
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delay(42);
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digitalWrite(LED, LOW);
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}
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void loop () {
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now = millis();
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cmdChar = mc.loop();
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cmd(cmdChar);
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if (digitalRead(BUTTON) == LOW) {
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camera();
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}
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}
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void pins () {
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pinMode(CAMERA, OUTPUT);
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pinMode(LED, OUTPUT);
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pinMode(BUTTON, INPUT_PULLUP);
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digitalWrite(CAMERA, HIGH);
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digitalWrite(LED, LOW);
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}
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void cmd (char val) {
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if (val == mc.CAMERA_FORWARD) {
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camera_direction(true);
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} else if (val == mc.CAMERA_BACKWARD) {
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camera_direction(false);
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} else if (val == mc.CAMERA) {
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camera();
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} else if (val == mc.STATE) {
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state();
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}
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}
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//null route direction
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void camera_direction (boolean state) {
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if (state) {
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mc.confirm(mc.CAMERA_FORWARD);
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mc.log("camera_direction(true)");
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} else {
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mc.confirm(mc.CAMERA_BACKWARD);
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mc.log("camera_direction(false)");
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}
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}
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void camera () {
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digitalWrite(CAMERA, LOW);
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digitalWrite(LED, HIGH);
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delay(CAMERA_MOMENT);
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digitalWrite(CAMERA, HIGH);
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delay(cameraFrame - CAMERA_MOMENT);
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digitalWrite(LED, LOW);
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}
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void state () {
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String stateString = String(mc.CAMERA_EXPOSURE);
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stateString += String(cameraFrame);
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stateString += String(mc.STATE);
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mc.print(stateString);
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}
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