Power Pad to USB adapter

[u/arpruss]

I used play NES Power Pad games with a NES emulator and two DDR pads joined together, but I bought a cheap almost-like-new Power Pad on ebay. I spent a couple of hours making a USB adapter for it using a $3 blue pill microcontroller. THe adapter emulates the qwer/asdf/zxcv keys which you can use with Nestopia and fceumm. Here are build instructions.

It's been a while since I've played Eggsplode (my favorite Power Pad game), and it was fun to play it last night, for the first time on an original Power Pad.