This project has been alive for almost 20 years (first version was released in 2007.). I open sourced it and put it on GitHub in 2014 after having less and less time to work on it. I put it on GitHub ...
XDA Developers on MSN
Pizza turns your spare Raspberry Pi Zero W and 2 W into an Arduino
Setting it up is really easy.
Recommended layout (for PS3 stick compatibility) Blue text in image (silk screen) corresponds to the Bx button numbers in the image for wiring above.
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