To make that actually work, Robofun paired an Arduino board with some capacitive controllers for the base, and connected that to a Raspberry Pi that linked the keyboard to the TV.

Technical Details and Components The keyboard was built using an Arduino board together with a fuel capacity of controllers, which is then connected to a Raspberry Pi mini computer.

Isn’t it time for a full Arduino-compatible keyboard? [ELECTRONOOBS] thinks so. This 41-button Arduino keyboard PCB is a stepping stone to his next project, a pair of two-way texting machines.

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.