If that wasn’t enough, he also uses a PS/2 keyboard for input ... which can be executed by the Arduino’s ATmega328. To keep everything in ROM and make the emulator portable, [Damian] used ...

[podstawek] has come up with the solution: a Commodore 64 keyboard emulator that works over serial ... which is sent to an Arduino over the serial connection. The Arduino uses the 6-bit code ...

We've seen microcontrollers like the Arduino and Raspberry Pi used for emulation before, but this project from Dr. Tom Tilley ...

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. Unconfirmed ...