The CD32 controller mod gets a fresh update thanks to a clever redesign in the latest video from Casual Retro Gamer, that brings modern feel to classic function. In a new video, the creator takes the A500 Mini’s USB gamepad—already a compact and sturdier version of the original CD32 pad—and transforms it into a proper, fully functional CD32 controller.
While the A500 Mini controller is based on the CD32 layout, it’s not directly compatible with original Amiga hardware due to its USB connection. That didn’t sit well with the creator, who decided to go beyond an adapter and instead developed a custom PCB to fit inside the A500 Mini pad shell. The result? A plug-and-play CD32 controller with the same solid feel as the newer gamepad—but with the functionality needed to work with real Amiga systems.
The project follows official Commodore schematics, using a 74LS165 and 125 chip arrangement along with a handful of surface mount components. The build wasn’t without bumps. Fine-pitch soldering returned like an old frenemy, and some fitting issues around shoulder button alignment and cable thickness required quick thinking and even a shim or two. But the process was documented in full, and adjustments were made—such as removing a redundant pull-up resistor (R16) after testing revealed it interfered with detection on real hardware.
After a bit of cleanup and tweaks to button pad positioning, the controller was tested using Guardian on a real CD32, and everything performed exactly as hoped—including those tricky shoulder buttons and even the missile launch mapped to the blue button.
This CD32 controller mod isn’t just a one-off. Updated PCB files, schematics, a bill of materials, and even pick-and-place files are included in the video’s description. For anyone with soldering skills and a spare A500 pad, it’s a chance to give your Amiga setup a clean, responsive controller upgrade—and maybe even save your original CD32 pad from further wear.
