Developer William A. Henderson has introduced an open-source Commodore USB keyboard adapter that reconnects the original C64 keyboard to modern computers. The project uses a Raspberry Pi Pico and a compact USB interface board, creating an easy bridge between vintage hardware and current technology.
Once the Pico is flashed with Henderson’s free firmware from GitHub, the keyboard becomes a plug-and-play USB device. Every key is mapped to match the original Commodore 64 layout, offering an authentic typing experience on any modern system.
Easy Setup for Everyone
The Commodore USB keyboard adapter focuses on simplicity. No soldering or rewiring is needed. Users only have to program the Pico, plug in the C64 keyboard, and connect via USB. Within seconds, it works on modern operating systems and popular emulators like VICE.
Because the project is open-source, builders can adjust the firmware or modify the hardware to suit their needs. This flexibility makes it ideal for custom retro setups, restoration projects, or dedicated emulator stations.
Affordable, Open, and Practical
Henderson’s design keeps costs low by using a Raspberry Pi Pico instead of expensive interface chips. The hardware and firmware are both hosted publicly, allowing anyone to download, build, and improve them.
This Commodore USB keyboard adapter is more than a clever build—it’s a practical way to bring classic computing back into everyday use.
Open-source files and firmware are available at GitHub.
