[jwallace15]

As Evan said, it would be best to get the MEGA 2560 or the Due because of more outputs. I just bought a 2560 because my UNO was too small.

However, if you have an UNO and have shields for it, please note that not all shields for the UNO work on the MEGA.

However, the UNO may work for you. 33 has an uno controlling their LED's.

The UNO has 5 PWM outputs that serve as part of the 13 digital outputs, wheras the MEGA 2560 has 13 PWM outputs in which 2 serve as part of the 32(?) digital outputs.

If by chance you would want to have it so that, say if your shooter is at 2000+ rpm and you want some LED's to turn on, there are 6 analog inputs on the UNO and 16 on the MEGA.

I can't help you on writing Java or C programs for it, though. I just use whatever language that is in the Arduino software (95% sure it's called Sketch).