You won't see GPIO changes on a multimeter, they happen too quickly, you need an oscilloscope. Remove that line from config.txt and reboot, that will prevent GPIO4 being driven by the 1-wire driver. WOOOOO :D :D :D thanks you man .... now the relay led dont stop work and all looks ok ....thanks you...

Are you sure you haven't used the 1-wire bus in the past and left it enabled? That will muck about with GPIO4 every minute or so. grep "w1" /boot/config.txt mmmm....i dont think its possible. I bought my raspberry just yesterday, and this is my first project whit this rasp. btw this is the result o...

You are the third person in 24 hours who is struggling with that type of relay board. But your youtube video is a very good example of showing what happens. I assume you are not using the relay to switch anything at the moment? So there are no other voltages/spikes which can cause trouble. Those re...

Hi, I write there because my GPIO 4 ramdomly works. #!/usr/bin/python import RPi.GPIO as GPIO import time GPIO.setmode(GPIO.BCM) # init list with pin numbers pinList = [2, 3, 4, 17, 27, 22, 10, 9] # loop through pins and set mode and state to 'low' for i in pinList: GPIO.setup(i, GPIO.OUT) GPIO.outp...