I am running the below lines to try to load my two therms.

sudo modprobe w1-gpio
sudo modprobe w1-therm
ls /sys/bus/w1/devices

All I am getting is 00- instead of 28-

I have checked wiring, works fine. It has been working for months but had to replace SD card due to failure.

I've also added to /boot/config.txt - dtoverlay=w1-gpio

Power is hooked to 3.3, data is to GPIO 4.

Everything is up to date.

  • You don't need the modprobes any more, just put the dtoverlay line in /boot/config.txt and reboot. If that doesn't work add the output of uname -a to your question.
    – joan
    Commented Jun 19, 2016 at 6:56
  • Have you changed the /boot/cmdline.txt with: bcm2708.w1_gpio_pin=X ?
    – linuxgnuru
    Commented Jun 21, 2016 at 18:36


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