Raspberry PiBoy
Michael Castor’s Raspberry PiBoy uses a Super “All-in-One” (AIO) board created by Giles Burgess (aka Kite). Kite’s Super AIO board requires very little technical know-how to use, because it already has all of the work done for you. Most Raspberry Pi-based Gameboy systems use AIO boards to simplify the build, but normally even they require a bit of creative wiring. Not Kite’s board.
Kite goes above and beyond, crafting a board that provides an LCD screen, onboard ATMEGA 32U4 (for button inputs), microSD slot, onboard battery charger, audio amplifier, volume control, external USB port, and status LEDs. The ports on the board line up perfectly with a Gameboy shell, but if you want to go above and beyond, and make your own Gameboy, check out Castor’s Walnut and Carbon Fiber shell.
You will need a 3D printer and a CNC machine to get the job done, but the end result is worth it. Provided you already have these machines, the entire build shouldn’t cost you more than $150. Not too shabby for what is, quite possibly, the most stylish Gameboy I have ever seen.