1-Wire in Home Assistant
To work with 1-Wire devices in Home Assistant, there is a standard 1-Wire integration that you can install through the Home Assistant Web interface.
Temperature sensors DS18B20 DS18S20 as well as other devices are supported.
The 1-Wire integration works through OWServer, which must be installed on the host system.
sudo apt-get install owfs ow-shell
By default, the owserver service runs with test fake 1-Wire devices that need to be disabled and enabled to work with 1-Wire sensors connected to the GPIO processor.
Open the configuration file
sudo nano /etc/owfs.conf
Find the line in it and comment it out:
# server: FAKE = DS18S20,DS2405
Add a line to the file:
There should now be lines in the configuration file:
server: port = localhost:4304 server: w1
Restart the owserver service:
sudo systemctl restart owserver
Setting up Home Assistant
Add 1-Wire integration to Home Assistant via the Home Assistant Web interface. (See Home Assistant 1-Wire integration)
When setting up the 1-Wire integration, leave the default server settings:
After installing the integration, temperature sensors and other supported devices connected to the controller should appear in the Home Assistant device list.