Provide test code (MIDI or Arduino) to test out the LEDs once the assembly is finished

[arthurlutz]

Once the assembly is finished it would be nice to have a test program to test out all the LEDs, two solutions could be used :

• some sort of python script or other that talks to midi and turns on and off the LEDs by sending MIDI signales

• an arduino sketch that goes through all the LEDs and turns them on and off and prints out some debug information on the serial port.