My retroarchcustom.cfg is simple, I've juste added network_cmd_enable = true. Maybe there is something else to add, but I can't find what. I tried stdin_cmd_enable = true but it doesn't change anything.

Ok so I did more tests and got strange behaviors. With the command you provided or via a simple script, RESET works 1 time only but... if you throw a QUIT, it works O_o

then I did the following:

~$ echo -n "LOAD_STATE" | nc -u -w1 192.168.1.30 55355
~$ echo -n "RESET" | nc -u -w1 192.168.1.30 55355
~$ echo -n "LOAD_STATE" | nc -u -w1 192.168.1.30 55355

1st command: success
2nd command: success
3rd command: fail

O_o

This is definitely a strange behavior from RA.
I tested this on my X86_64 recalbox, I'll do more test tonite on the rpi3 one.

I really can't say where the issue is. If you say this cmd doesn't work, it looks like a RA problem.

But I tested my script on my 17.10.2 recalbox and I can send multiple RESET, exit game re-enter game and it still works O_o

What if you send the cmd to localhost (127.0.0.1) ?

I do have the same issue. Even with the simple echo -n "RESET" | nc -u -w1 192.168.1.172 55355 command from my computer, retroarch only responds to one kind of each event. I can't send the same command twice...

def netcmd(channel):
    retroarch(nwcommand)

with

def netcmd(channel):
      retroarch(COMMAND)

I can use this script only once. Really no idea why it stucks..
I also tried to close the socket with s.close

Hi bro, I tested my script and it works fine, I can do several RESET, exit,re-enter the game and do it again.

could you please try this:

import RPi.GPIO as GPIO
import time
import socket
# addressing information of target
IPADDR = "127.0.0.1"
PORTNUM = 55355
 
# enter the data content of the UDP packet
COMMAND = "RESET"

def retroarch(nwcommand):
	try:
		s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
	except socket.error:
		print 'Failed to create socket'
		sys.exit()
	s.sendto(nwcommand, (IPADDR, PORTNUM))


GPIO.setmode(GPIO.BCM)
GPIO.setup(3, GPIO.IN, pull_up_down=GPIO.PUD_UP)

def netcmd(channel):
	retroarch(nwcommand)
    
GPIO.add_event_detect(3, GPIO.BOTH, callback=netcmd, bouncetime=500)

while True:
    time.sleep(0.2)

As soon as I press my Reset button on the console it works exactly 1 time. After this no retroarch special commands work anymore, not even on the controller (No Hotkey+Start to exit the game, reset, rewind, save, load etc.). I can still enter the RetroArch settings with Hotkey+A but then it freezes there and I have to turn off the Raspi by pull out the plug.

I think it's a script problem because the Hotkey commands work flawlessly on the controller. But once I used the Hardware Reset button with this script, all is bad. Any idea on that?

Could you please provide me all necessary links which should be referred or mentioned in this topic?

But i wouldn't call it "retroarch network commands" since it's definitely not "appealling". The aim is to make a gpio button "interact" with the emulators, so i think the title could be somethink like "map a GPIO button for various emulators interactions". Most of times, as you said in the wiki, it's for some original cases modding ... Remember we can also kill any running emulator, which is not part of your wiki (need a forum link ?)

Or something like "mod an original case : map buttons to GPIO and make them interact with recalbox" ? And add a link to the start stop button wiki ?

Maybe it should even be a new section ? Knowing that there has been some huge steps forward concernaning the RGB output ...

@supernature2k still working on a nice and "easy to setup" gpio handling for retroach network commands + killing emulators ?

https://github.com/recalbox/recalbox-os/wiki/RetroArch-Network-Commands-(EN)

https://github.com/recalbox/recalbox-os/wiki/RetroArch-Network-Commands-(DE)

Network commands are detailed here:

https://github.com/libretro/RetroArch/wiki/Network-Commands

What about a nerdy Wiki article about network commands via console and python? Would it be worth to write @supernature2k @subs ? (I could do it).