Arduino Powered Bluetooth MIDI Keyboard | Hangar42
07 Starter Kit: Keyboard Instrument - YouTube
Arduino Nano | Hackaday
GitHub - nicholasbester/arduino-keyboard-instrument: A Keyboard instrument made using pushbuttons and a piezo speaker on an Arduino http://www.nickbester.com
Keyboard | Arduino Project Hub
Here you have it! a MIDI keyboard you can build yourself using Arduino. I made this for my final year university project. : r/WeAreTheMusicMakers