Main > Raspberry Pi & Dev Board

Controllers direct to GPIO - no keyboard encoder.

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scaryevilguy:


This is the pinout I used in a RPi 2 using DigitalLumberjacks driver. It allows 2 joysticks, and 8 buttons per player. Works fine with Retropie

nitrogen_widget:
Then I guess I was right.
didn't think it made sense to have a 40 pin GPIO but not increase the actual number of usable GPIO's incrementally.

StefanBurger:
Adafruit has also an gpio to usb-keyboard driver:
https://github.com/adafruit/Adafruit-Retrogame

mvolke1:
I use an iPac with my Pi bar top and it's worked great. Very simple.

StefanBurger:
I also use Ultimarc iPac4 with raspberry-pi 2 and it works great (just plug and play, will be recognized as a keyboard, no special drivers necessary).

Another approach would be a simple custom pcb with shiftregisters:
http://www.instructables.com/id/Using-a-shift-register-with-Raspberry-Pi/?lang=de

Regards
Stefan

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