Homepage › Forums › RetroPie Project › Controller Configuration in RetroPie › GPIO to Keys simplest method? › Reply To: GPIO to Keys simplest method?
I didn’t come across this thread until late, but for anyone else working on this, I found the instructions at https://learn.adafruit.com/retro-gaming-with-raspberry-pi/buttons to be quite helpful.
The procedure is essentially what @raoulangel described.