The Arduino uses a shift register to interact with the keyboard’s 8×10 matrix, and the sketch translates any serial data it receives into the keypresses the clone is expecting.

MIDI instruments are cool, but they’re not laser cool. That is, unless you’ve added lasers to your MIDI instrument like [Lasse]. [Lasse] started out with an old MIDI keyboard.

The Gesture Keyboard is a device that translates gestures into letters. It’s made by an Arduino Pro Micro, an HC-06 module for Bluetooth communication, and an MPU-6050 accelerometer.

MIDI controllers also require the use of a DAW (Digital Audio Workstation). In a MIDI keyboard controller, different sections of the keyboard can be assigned to control different instruments.