Keyboard instrument using Piezo and Push Buttons
Clavier Midi avec Mappage sur Ableton;)
Macro keyboard based on ATmega328P.
Using the built-in Bluetooth of an ESP32 to build a macro keypad.
Make your own piano with tactile buttons.
Macro keypads can be a really useful productivity tool, and I challenge you to find a simpler one than this! It only uses two components!
Arduino USB Keyboard free programmable build yourself. A resistive touchscreen panel with paper background acts as a macro keypad