I'm building a shooting gallery game that uses IR to trigger different props. There would be various targets setup in the scene, each with an IR sensor, which would trigger something to control a prop. I'm hoping to make it flexible so I could utilize different methods, such as pneumatic valves, DC motors, servos, etc... Also, I would like to have a different sound clips played when each target is hit (to match the prop).
I have built a prototype gun and target, which has been working great. But, I'm having a hard time figuring out how to scale this beyond the one test target I made.
I thought about using an Arduino Mega, but I would have so many wires to run since each target would have an IR sensor and red LED and would need to be connected to the Mega. Each prop motor would need to be connected as well, so that's more wires to run.
Should I consider using a Nano in each trigger? That could read the IR then trigger the prop, but I'm not sure what to do about sound effects. I'd like to have one central sound system to play all the game sounds.
I do have a Raspberry Pi I could use in the game too, if that would help.
If anyone has any thoughts on how I can pull this off, I would really appreciate it. Thank you!