boolean debug_state = false; /* ------------------------------------------------ * pins * ------------------------------------------------*/ //Arduino Uno + relay module const int PIN_INDICATOR = 13; const int PIN_CAMERA = 9; volatile boolean running = false; unsigned long timer = 0; unsigned long frame_start = 0; unsigned long delay_start = 0; volatile long seq_delay = 42; const char cmd_camera = 'c'; const char cmd_debug = 'd'; const char cmd_connect = 'i'; volatile char cmd_char = 'z'; const char cmd_mcopy_identifier = 'm'; const char cmd_cam_identifier = 'k'; const int serialDelay = 5; void setup() { Serial.begin(57600); Serial.flush(); Serial.setTimeout(serialDelay); Pins_init(); } void loop() { if (Serial.available()) { /* read the most recent byte */ cmd_char = (char)Serial.read(); } if (cmd_char != 'z') { cmd(cmd_char); cmd_char = 'z'; } timer = millis(); } void cmd (char val) { if (val == cmd_debug) { debug(); } else if (val == cmd_connect) { connect(); } else if (val == cmd_mcopy_identifier) { identify(); } else if (val == cmd_camera) { Frame(); } } void debug () { debug_state = true; Serial.println(cmd_debug); log("debugging enabled"); } void connect () { Serial.println(cmd_connect); log("connect()"); } void identify () { Serial.println(cmd_cam_identifier); log("identify()"); } void Pins_init () { pinMode(PIN_CAMERA, OUTPUT); pinMode(PIN_INDICATOR, OUTPUT); digitalWrite(PIN_CAMERA, LOW); digitalWrite(PIN_INDICATOR, LOW); } void Frame () { frame_start = millis(); running = true; digitalWrite(PIN_CAMERA, HIGH); digitalWrite(PIN_INDICATOR, HIGH); delay(200); digitalWrite(PIN_CAMERA, LOW); digitalWrite(PIN_INDICATOR, LOW); delay(600); running = false; Serial.println(cmd_camera); log("Frame completed"); } void log (String msg) { if (debug_state) { Serial.println(msg); } }