Raspberry Pi Pinout

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W1-GPIO - One-Wire Interface

To enable the one-wire interface you need to add the following line to /boot/config.txt, before rebooting your Pi:




if you would like to use a custom pin (default is BCM4, as illustrated in pinout herein).

Alternatively you can enable the one-wire interface on demand using raspi-config, or the following:

sudo modprobe w1-gpio

once either of the steps above has been performed, you can list the devices your Raspberry Pi can probe via (by default) BCM4, like so:

ls /sys/bus/w1/devices/