Around 2003, I built a 24 pot, 5 button generalized midi controller using a 16F628 PIC (using timing of cap discharge to get pot positions). There is even a windows configuration utility (using ...

DIY musical instruments are their own thing entirely, but if you're looking for a place to start, Adafruit has a guide to building your own MIDI controller using an Arduino. The OONTZ uses a 3D ...

It’s worth noting that the actual USB interface is being done with a stand-alone controller, so the Arduino here is being used purely to drive the lighting effects.

Adafruit Gemma Attiny85 Powered Button Sized Arduino Programmable Board. 3:02 pm January 22, 2013 By Julian Horsey. ... The PWM output pins can control small motors or servos, ...