64-key MIDI Matrix shield PCB (April 2022)

Arduino shield PCB for the 64-key MIDI Matrix project in the April 2022 issue of PE.

This simple project turns an Arduino into a MIDI key matrix. These are popular with musicians for triggering samples, but commercial versions cost hundreds of pounds. Ours costs a fraction of that, and you can customise it by changing the Arduino software. It supports regular or illuminated buttons and can also be programmed to act as a MIDI pass-through, among other roles.

IMPORTANT – This project requires two PCBs.

The 64-key MIDI Matrix switch board, which is the other board needed to complete this project, is available HERE

Please note this PCB is supplied without components.