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adafruit / Adafruit-Retrogame

Raspberry Pi GPIO-to-virtual-keyboard utility for classic game emulators
https://learn.adafruit.com/retro-gaming-with-raspberry-pi
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request for help with troubleshooting #37

Closed d3rio closed 8 years ago

d3rio commented 8 years ago

Thanks for making the new version where the only thing we have to change is the retrogame.cfg file. That makes it a lot easier to set up and such.

However, I still can't get it to work. I have a RPi3vB running RetroPie, and I followed the instructions on the Adafruit tutorial exactly, as far as I can tell.

Here is my retropie.cfg:

# Sample configuration file for retrogame. # Really minimal syntax, typically two elements per line w/space delimiter: # 1) a key name (from keyTable.h; shortened from /usr/include/linux/input.h). # 2) a GPIO pin number; when grounded, will simulate corresponding keypress. # Uses Broadcom pin numbers for GPIO. # If first element is GND, the corresponding pin (or pins, multiple can be # given) is a LOW-level output; an extra ground pin for connecting buttons. # A '#' character indicates a comment to end-of-line. # File can be edited "live," no need to restart retrogame! ` # Here's a pin configuration for the PiGRRL 2 project: LEFT 4 # Joypad left RIGHT 17 # Joypad right UP 27 # Joypad up DOWN 22 # Joypad down A 18 # 'A' button B 23 # 'B' button # For configurations with few buttons (e.g. Cupcade), a key can be followed # by multiple pin numbers. When those pins are all held for a few seconds, # this will generate the corresponding keypress (e.g. ESC to exit ROM). # Only ONE such combo is supported within the file though; later entries # will override earlier.`

My setup is really simple: just the 4 directions on a joystick and two buttons. When I run retrogame:

./retrogame

I don't get any error messages or anything, but nothing happens when any of the GPIO pins are shorted to ground. I even tried directly touching one of the wires connected to the appropriate GPIO pin to the wire connecting to the GRD pin, but still nothing.

Any ideas on what I can do to troubleshoot?

d3rio commented 8 years ago

Actually, I found my problem after checking everything again. I was just using the wrong GPIO pins, I was mixing up left and right on the rows. It's working now though! Sorry for the trouble.