How to change the Pin used for the 1-wire Bus

Question

By default the header Pin Nr. 7 us used by the 1-wire kernel module.

I would like to change it to a one of the 4 new GPIO Pins of an Rev 2 Pi.

score 9 · Answer 1 · answered Dec 12 '15 at 11:01

9

To change the default GPIO pin used for 1-wire communication you can edit the /boot/config.txt file and add this line:

dtoverlay=w1-gpio,gpiopin=x

where x is the GPIO pin you want to use. Reboot to see the change.

answered Dec 12 '15 at 11:01

Joakim

score 2 · Answer 2 · edited Jul 27 '22 at 05:56

2

Important remark

it must be exactly as indicated, without any space between parameters and values in the command

As written above in /boot/config.txt

 dtoverlay=w1-gpio,gpiopin=x

edited Jul 27 '22 at 05:56

spaceKelan

answered Mar 14 '19 at 20:49

Evaldo