@naughtjosh How did you connect the controller to the GPIOs ? Did you install any of the additional drivers needed for such setup - https://retropie.org.uk/docs/GPIO-Modules - ? Simply connecting a few wires to the GPIO pins is not enough. Ideas that don't require any downloads? Set-up your PI on a location where you have internet, just in case you'll need a driver to be downloaded or use your phone as a WiFi access point.

Sounds like retrogame isn't installed, or it isn't loading when booting, or isn't configured properly. If you open the terminal (press F4) and push your buttons and see if the corresponding letters appear. If you see no letters when moving the joystick or pushing buttons, then retrogame isn't working

As with the old controller, there's no 1:1 mapping between the cables/wires and the actual buttons - you can't wire it directly to the GPIO and expect it to automatically work, you'll need a driver. When you're talking about the 'new' NES controller, do you mean the one for the NES Classic Mini or the one for the Switch ? The controller for the NES Classic Mini has the same port type as a Wii (U) Classic controller - see here and here for details.

@pengu1n said in GPIO Controls Not Registering After Launching Games: [WARN] Input device ID 3 is unknown to this libretro implementation. Using RETRO _DEVICE_JOYPAD. That's because of the RA's configuration - try resetting the configuration to default by copying the retroarch.cfg.rp-dist files over the retroarch.cfg in the /opt/retropie/configs/all/ folder.

@md201 Looks like my directories were off. Adding the simple /home/pi/switch to all os.system commands did the trick............ :(

@Freddy00 Driver installation with sudo ~/Retropie-Setup/retropie_setup.sh should work. If you want to review the compile log see zless ~/~/RetroPie-Setup/logs/rps_2019-03-15_194311.log.gz when back on commandline (your date and time may vary). You can type lsmod alone, you should spot the mk_arcade... driver loaded. (If the command still is not found you should install kmod, but it should be already there, so there should no need to issue sudo apt-get install kmod. Then, and only then when lsmod shows the module, proceed with https://github.com/recalbox/mk_arcade_joystick_rpi#auto-load-at-startup edit the mk_arcade_joystick.conf and change the map=1 to map=1,2. Save the file, reboot and then you can configure your joysticks with emulationstation. If you use the retropie_setup.sh method you should succeed. If not please do post the build log as noted above. PS: I would refrain from following the Github tutorial from A to Z, a) it is tailored towards another Retro-Distro (Recalbox), b) if you get stuck it's hard to help and c) last but not least this is a forum about Retropie-Distro (and not Recalbox).

@krullbeast more specifically, can i map the nunchuck(as a directional pad also) C and Z buttons as select and start in emulation station or retroarch AND also have two seperate A and B buttons wired to GPIO pins on my Pi 3b? will they all communicate with the Pi? or will the A and B buttons not work after enabling 12c serial at start up? i am very new to this, please forgive me if i sound stupid. and thank you for any advice this is a rough schematic of what i'm trying to build

Try adding the following parameters in the /boot/config.txt file disable_audio_dither=1 audio_pwm_mode=2 then reboot and see if it makes a difference.

So the controller is/was connected to the internal GPIO port of the Pi? Any chance that some of the wires have been detached while travelling? If that is not the case, please provide the information that is asked for in https://retropie.org.uk/forum/topic/3/read-this-first

Hey, my Fan Control PCB has arrived and I successfully installed it in my MegaPi. I love how quiet (Silent? =) ) my pi is now! I observed exactly the same issues as you, too - which makes perfect sense, given the fact we seem to have the same fans. Not a big issue for me though, I will be more than happy with just an on/off script! Also the LED is very bright indeed, but it doesn't shine through the case - I can only see it when I open the SD card storage, which to me is a plus (can debug it visually). Thank you for making me aware of this PCB! It took a very long time to arrive but I am very happy with it, as honestly the buzzing was kinda bothering me when playing GameBoy games or watching movies. EDIT: I am therefore joining the question - does anybody know a fan which would play nice with PWM regulation? This one definitely doesn't like it.

I take it nobody uses the GPIO for anything?!?

@blacklight19 You can use SSH to connect over the network to the system.

@cyperghost You're my hero ! thanks for that ! I will do a post with my entire project soon ! thanks !

@rufflespie The driver for individual buttons is mk_arcade_joystick either from the retropie script or you can download it from https://github.com/recalbox/mk_arcade_joystick_rpi

@engrdanny Emulationstation by itself does not read inputs directly, but uses the SDL library to handle the gamepad, which in turn needs the OS to recognize it. Which driver are you using to configure your custom gamepad ? Is the gamepad recognized by jstest ?

Hi, mitu. Thank you very much for the reply. This is what I was looking for.

@mitu Thank you, y will do the last recomendation that you say and I will use the information of this video