Click on the main menu, select “Preferences” and then “Raspberry Pi Configuration”.
Now select the tab “Interface” and then and set 1-wire to “Enabled”.
Finally restart the Raspberry Pi.
Enable 1-wire interface
Using "Raspberry Pi Configuration" on Raspberry Pi OS (Raspbian)
Enable 1-wire interface
Using "raspi-config" on Raspberry Pi OS (Raspbian)
Type from Terminal the command to launch the raspi-config utility:
sudo raspi-config
Select “Interfacing Options”, now select “1-Wire”.
To the question “Would you like the one-wire interface to be enabled?” answer with “Yes”.
Finally reboot your Raspberry Pi.
Enable 1-wire interface
Manually
Edit the /boot/config.txt file:
sudo nano /boot/config.txt
(Some distributions may use the /boot/firmware/config.txt)
and add the following line:
dtoverlay=w1-gpio
If you would like to use a custom pin (the default is GPIO 4):
dtoverlay=w1-gpio,gpiopin=n
Finally reboot the Raspberry Pi
See all the connected devices
You can type the following command to see all the connected devices:
ls /sys/bus/w1/devices/
