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

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

@ooskay Instead of bumping year(s) old topics, why don't you open a new topic, explaining what's your setup and what exactly do you want to do.

@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

Hello, I have not setup N64 in a while, but I remember there being an “AutoConfig” file of some sort that would overwrite my manual changes.

I was able to update that file and it no longer imposes it’s will upon my setup. That may or may not apply to your GPIO setup but it is worth a look.

EDIT: Totally missed your reference to that file. Sorry. I do believe that is the culprit though...

@mememinister , I am trying to do the same thing but can't get my mapping working manually. Only through the ES menu Configuration Input. Do you do your mapping in es_input.cfg or in retroarch.cfg? My retroarch.cfg gets ignored or at least that is what it seems like. Do you have a little manual how you did the mapping?

@bpmnyc

It wouldn't work for a couple of reasons. Primarily, RetroArch will only use a mouse or pointer device to emulate a light gun. Popular solutions to this are AimTrak USB guns, as well as a Dolphinbar/Wiimote/Gun casing combo. Another big hangup was input lag, as the screen flash has to occur at the exact moment the trigger is pressed. However, thanks to recent developments that were previously thought to be somewhat impossible, this would no longer be an issue when using capable hardware. Still, support would nonetheless have to be added for RetroArch to interface with actual light guns.

@az sorry, that was my fault, I was typing on my phone. Glad you got it sorted.

I don’t know the exact pi out of the pi2scart, but you can find the used pins of the PowerBlock at https://blog.petrockblock.com/powerblock-raspberry-pi-power-switch/:

S1: pin 12
S2: pin 11

If this does not collide with the pi2scart, it should work.

@sturbek I dunno about turning off a USB port, but if you are using a powered hub, you could trigger that on and off via GPIO as you suggest. Nothing is built into RetroPie to do this--you're gonna have to build something from scratch.

A recent MAKE article was published with details about how to go about it with a relay:
https://makezine.com/2018/03/19/control-electronic-relays/

@psb The poster hasn't been on this forum for 1 year and bumping old topics is bad forum etiquette. If you have a question, then open a new topic and ask away - don't re-open years old topics.

@clyde I try to create such a config file there with the output from jstest. All buttons are recognized, even the coin input gives feedback. It already helped to try on. Thanks very much, I get back later...

Edit: unfortunately no. My resources are very limited, I'm actually in the Philippines for holidays, building this machine for my friends bar. Brought all electronics from CH but no controller. But now time starts running out :-( glad that at least there's no power outage for days and internet is working...

Edit2: I copied the cfg of the Logitech gamepad to something like joypad.cfg, commented out most of the lines and ES doesn't ask anymore. Joystick works, most of the buttons too. Not sure if retroarch takes this config for the games now, but that will be sorted out tomorrow. Was a great help to get here, thanks again.

I would like to recommend the following reading, which I have applied to my Raspberry pi
https://descubriendolaorangepi.wordpress.com/2017/06/20/gpio-en-c-control-automatico-de-ventilador-segun-la-temperatura/
I usually use this other script in Python
https://pastebin.com/EsbQEJzw

@obsidianspider ok i found the issue!!!!!

i had copy/pasted the config line within /etc/udev/rules.d/10-retrogame.rules (i create this manually rather than using the adafruit install script)

was checking the config file and noticed that the config contents looked odd

SUBSYSTEM=="input", ATTRS{name}=="retrogame", ENV{ID_INPUT_KEYBOARD}="1"

at first glance it looked fine, but when i typed another double quote next to the exsisting ones, it looked slightly different!! so i re-typed all the quotes, and everything is fine and dandy again!!! :)