with dd kit there are severals modification from original project needed:
- the battery should be moved inside the pipe and replaced with cylindrical batteries (for example 2x 18650 li-ion 3.7v)
- the arduino board should be moved inside the receiver, wich internal resin should be removed
- speakers should be smaller (i don't remember the internal diameter of DD pipe)
- you will need to build an henglster counter to place the mp3 player and bar-led
this is only a temporary list of the changes required but not having the DD kit may be others not mentioned
in the meantime i just upgraded my arduino code because i noticed something about the laser effect:
they added in post production a white smoke effect that last less than a second and disappears completely after the laser is gone.It does not always appear, but is mostly present in foreground scenes.
so i updated the code adding a very short white light emission before the red light of the E11 laser
delay(30); // pause to wait mp3 start
digitalWrite(ledPin, HIGH); //red
digitalWrite(ledPin10, HIGH); //blue
digitalWrite(ledPin9, HIGH); //green
delay(1);
digitalWrite(ledPin10, LOW); //blue
digitalWrite(ledPin9, LOW); //green
delay(80); // partial lenght of sound
digitalWrite(ledPin, LOW);
delay(250); // pause to wait the sound finish
would be nice to have a real smoke, which could be easily controlled by arduino adding a small device derived from green cigarettes, but it would be 'problematic its control (may be set only once every 10/20 gunshots or activated via a switch)