A midi keyboard run on Arduino Mega and plugged into a Behringer Model D directly on the PCB.
This is a work in progress, I'll post schematics of the circuitry when I have a fully working version. At the moment I push new commits when I add features that I tested.
The keyboard is from a dismantled M-Audio Oxygen 25 MkIV. The goal is to assemble it in a wooden case with a Behringer Model D to make a minimoog clone.