LED on GPIO is not working

mrogeriodf

I've plugged a LED with resistor on GPIO. When I turn on raspberry 3 the LED turn on but then turn off when Batocera starts.

The funny thing is in Raspberry 2 works perfectly.

jaimitos

mrogeriodf HOLA YO Conseguí HACERLA FUNCINAR el LED, ENTRA A CONFIG.TEXT DESDE LA SD Y COPIA ESTO enable_uart=1 EN LA ULTIMA LINEA y guarda. LUEGO CONECTA LA SD Y enciende LA RASPBERRY 3B+ conectada por cable y conecta tu rasberry encendida por cable a tu pc, apreta las teclas windows mas r,luego escribe \batocera y enter,sale la carpeta share,luego carpeta system, abrimos un block de notas de windows y arrastramos al block de notas el archivo batocera.cofig para editarlo con el block de notas,luego busca donde dice d3 gpio controllers, y cambia el donde dice gpio.enable=0 antes estaba en 1,deve estar en 0. asi me funciono mi raspberry 3 b+ con batocera con un led aqui para encontrar los archivos que te digo

nadenislamarre

and ?
the batocera boot scripts doesn't call the gpio api, so the value of the bits on the gpio are uncertain.
you should call gpio to put the led on when batocera start (/etc/init.d/S99Custom)

mrogeriodf

Unfoertunatelly, I don't know how to do that.

If you don't mind, could you give me a hand?

nadenislamarre

not tested, however, this should work : https://thepihut.com/blogs/raspberry-pi-tutorials/27968772-turning-on-an-led-with-your-raspberry-pis-gpio-pins

mrogeriodf

@nadenislamarre it didn't work. I did exactly as requested, but nothing happened.

I give up. I bought a Raspberry Pi 3 to replace a Pi 2 and the new one is faster, but has this LED issue and also a controllers lag. It's a bit frustrating...

Thank you anyway

nadenislamarre

a controller lag only on rpi3 and not on rpi2 ?

mrogeriodf

@nadenislamarre Yes. Rpi 2 hasn't lag, but some games run very slow, like Ultimate MK3 on mame e all Donkey Kongs on Snes. When overclocking, they work fine. Rpi3 run normally, but I realized those lags.

By the way, is Odroid XU4 better than Raspberry? I heard there are some issues with bluetooth controllers and incompatibilities. What is your experience?

DanielCuadra

Hi, I bought the case SUPER KUMA 9000, which resembles SNES with functional ON/OFF and RESET buttons using GPIO and activated with a script.

Buttons work fine after running the script, however I'm not able to make the LED stay on. It turns on while starting the PI, but after Batocera starts, the led turns off.

I tried this script in RECALBOX and works well, so I'm thinking that maybe the issue is related with PIN numberings.

Does anyone know if the GPIO PIN have different numbers in RECALBOX and BATOCERA?

As a reference, this is the script provided that works on RECALBOX:

import time
import os
import RPi.GPIO as GPIO

GPIO.setmode(GPIO.BOARD) #Use the same layout as the pins
LED=7
FAN=8
RESET=3
POWER=5
CHECK_PCB=10
GPIO.setup(LED, GPIO.OUT) #LED Output
GPIO.setup(POWER, GPIO.IN) #set pin as input
GPIO.setup(RESET, GPIO.IN, pull_up_down=GPIO.PUD_UP)
GPIO.setup(CHECK_PCB, GPIO.IN, pull_up_down=GPIO.PUD_UP)

def led(status):
if status == 0:
GPIO.output(LED, GPIO.LOW)
if status == 1:
GPIO.output(LED, GPIO.HIGH)

led(1)

while True:
if GPIO.input(CHECK_PC😎==GPIO.LOW:
led(1)
if(GPIO.input(POWER) == GPIO.HIGH):
led(0)
os.system("shutdown -h now")
if(GPIO.input(RESET) == GPIO.LOW):
led(0)
os.system("reboot")