diff --git a/ino/mcopy_jk_firmware/mcopy_jk_firmware.ino b/ino/mcopy_jk_firmware/mcopy_jk_firmware.ino
index 5442cfe..bfc2965 100644
--- a/ino/mcopy_jk_firmware/mcopy_jk_firmware.ino
+++ b/ino/mcopy_jk_firmware/mcopy_jk_firmware.ino
@@ -1,22 +1,234 @@
 
+/*
+  Wiring
+
+  For "MONITOR" pins with INPUT_PULLUP resistors:
+  GND-----\ | \-----PIN
+  No additional resistors/caps needed.
+
+  CAMERA + CAMERA_DIR and PROJECTOR + PROJECTOR_DIR:
+  Wire directly to corresponding relay pins.
+  Arduino  2   3   8   9
+  Relay    1   2   3   4
+*/
+
+boolean debug_state = false;
+
+unsigned long now; //to be compared to stored values every loop
+
+const int CAMERA = 2;
+const int CAMERA_DIR = 3;
+const int CAMERA_MONITOR = 4;
+
+unsigned long cam_momentary_end;
+const long cam_moment = 300;
+boolean cam_dir = true; 
+boolean cam_running = false;
+boolean cam_momentary = false;
+
+const int PROJECTOR = 8;
+const int PROJECTOR_DIR = 9;
+const int PROJECTOR_MONITOR = 10;
+
+unsigned long proj_momentary_end;
+const long proj_moment = 300;
+boolean proj_dir = true;
+boolean proj_running = false;
+boolean proj_momentary = false;
+
+//PROJECTOR COMMANDS
+const char cmd_projector = 'p';
+const char cmd_proj_forward = 'g';
+const char cmd_proj_backward = 'h';
+
+//CAMERA COMMANDS
+const char cmd_camera = 'c';
+const char cmd_cam_forward = 'e';
+const char cmd_cam_backward = 'f';
+
+const char cmd_debug = 'd';
+const char cmd_connect = 'i';
+volatile char cmd_char = 'z';
+const char cmd_mcopy_identifier = 'm';
+
+//const char cmd_proj_identifier = 'j';
+const char cmd_proj_cam_identifier = 's';
+
+const int serialDelay = 5;
+
+void setup () {
+  Serial.begin(57600);
+  Serial.flush();
+  Serial.setTimeout(serialDelay);
+
+  pins();
+}
+
+void loop () {
+  now = millis();
+  if (Serial.available()) {
+    /* read the most recent byte */
+    cmd_char = (char)Serial.read();
+  }
+  if (cmd_char != 'z') {
+    cmd(cmd_char);
+    cmd_char = 'z';
+  }
+  
+  if (cam_running) {
+    monitorCam();
+  }
+
+  if (proj_running) {
+    monitorProj();
+  }
+}
+
+void pins () {
+  //RELAYS
+  pinMode(CAMERA, OUTPUT);
+  pinMode(PROJECTOR, OUTPUT);
+
+  pinMode(CAMERA_DIR, OUTPUT);
+  pinMode(PROJECTOR_DIR, OUTPUT);
+
+  //PULLUP
+  pinMode(CAMERA_MONITOR, INPUT_PULLUP);
+  pinMode(PROJECTOR_MONITOR, INPUT_PULLUP);
+
+  //SET LOW
+  digitalWrite(CAMERA, LOW);
+  digitalWrite(CAMERA_DIR, LOW);
+  digitalWrite(PROJECTOR, LOW);
+  digitalWrite(PROJECTOR_DIR, LOW);
+}
+
+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_projector) {
+    proj_start();
+  } else if (val == cmd_proj_forward) {
+    proj_direction(true);
+  } else if (val == cmd_proj_backward) {
+    proj_direction(false);
+  } else if (val == cmd_cam_forward) {
+    cam_direction(true); //explicit
+  } else if (val == cmd_cam_backward) {
+    cam_direction(false);
+  } else if (val == cmd_camera) {
+    cam_start();
+  }
+}
+
+
 void monitorCam () {
-
+  int position = digitalRead(CAMERA_MONITOR);
+  if (cam_momentary && now >= cam_momentary_end) {
+    digitalWrite(CAMERA, LOW);
+    cam_momentary = false;
+  }
+  if (!cam_momentary) {
+    if (position == LOW) {
+      cam_stop();
+    }
+  }
 }
 
 void monitorProj () {
-
-}
-
-void momentary (int pin, int pause) {
-  digitalWrite(pin, LOW);
-  delay(pause); //leave pause to be blocking
-  digitalWrite(pin, HIGH);
+  int position = digitalRead(PROJECTOR_MONITOR);
+  if (proj_momentary && now >= proj_momentary_end) {
+    digitalWrite(PROJECTOR, LOW);
+    proj_momentary = false;
+  }
+  if (!proj_momentary) {
+    //If internam microswitch is set to LOW?
+    if (position == LOW) {
+      proj_stop();
+    }
+  }
 }
 
 void setDir (int pin, boolean dir) {
-  if (d) {
+  if (dir) {
     digitalWrite(pin, HIGH);
   } else {
     digitalWrite(pin, LOW);
   }
+}
+
+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_proj_cam_identifier);
+  log("identify()");  
+}
+
+void proj_start () {
+  digitalWrite(PROJECTOR, HIGH);
+  proj_running = true;
+  proj_momentary = true;
+  proj_momentary_end = now + proj_moment;
+}
+
+void cam_start () {
+  digitalWrite(CAMERA, HIGH);
+  cam_running = true;
+  cam_momentary = true;
+  cam_momentary_end = now + cam_moment;
+}
+
+void proj_stop () {
+  proj_running = false;
+  Serial.println(cmd_projector);
+  log("projector()");
+}
+
+void cam_stop () {
+  cam_running = false;
+  Serial.println(cmd_camera);
+  log("camera()");
+}
+
+void proj_direction (boolean state) {
+  proj_dir = state;
+  setDir(PROJECTOR_DIR, state);
+  if (state) {
+    Serial.println(cmd_proj_forward);
+    log("proj_direction -> true");
+  } else {
+    Serial.println(cmd_proj_backward);
+    log("proj_direction -> false");
+  }
+}
+
+void cam_direction (boolean state) {
+  cam_dir = state;
+  setDir(CAMERA_DIR, state);
+  if (state) {
+    Serial.println(cmd_cam_forward);
+    log("cam_direction -> true");
+  } else {
+    Serial.println(cmd_cam_backward);
+    log("cam_direction -> false");
+  }
+}
+
+void log (String msg) {
+  if (debug_state) {
+    Serial.println(msg);
+  }
 }
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