About
1-Wire is a built-in integration that connects Home Assistant to 1-Wire devices through an OWServer instance. It works locally and is set up in the UI by entering the host and port of the OWServer. It adds binary sensors, selects, sensors and switches, including humidity and voltage readings, thermocouple temperature, a temperature resolution select, and switches for current A/D control and programmed input-output. An option sets sensor precision, where lower precision gives faster response with less accuracy. Device-specific options can be customized or reset to defaults. Home Assistant can discover it on the network, add new devices automatically, and remove devices that are gone.
Automatic summary of Home Assistant's source code. Something wrong? Get in touch
Supports
Works locally Talks to your devices on your own network. No vendor cloud in between.
Set up in the UI Add it in Settings, Devices and services. Nothing to download.
Found by itself Home Assistant spots it on the network and offers to add it.
Adds new devices New devices show up without setting it up again.
Cleans up devices Devices that are gone are removed by themselves.
Change settings later Its connection settings can change without removing it.
Silver quality Home Assistant's own rating of its code and setup experience.
Updated with Home Assistant Ships and updates with every Home Assistant release.
Provides
- Switches
- Sensors
Setting it up
Home Assistant usually finds it on the network and offers to add it. It can also be added by hand under Settings, Devices and services.
Set OWServer instance details
- HostThe hostname or IP address of your OWServer instance.
- PortThe port of your OWServer instance (default is 4304).
Also asked when changing the connection.
After setup
- Sensor precisionThe lower the precision, the faster the sensor will respond, but with less accuracy.
- Reset all device customizationsUse this to reset all device-specific options to default values.
- Customize specific devicesCustomize behavior of individual devices.
Texts from Home Assistant's source code, Apache License 2.0.
Entities
- Binary sensorsSensed
- SelectsTemperature resolution
- SensorsHIH3600 humidity, HIH4000 humidity, HIH5030 humidity, HTM1735 humidity, Raw humidity, Thermocouple K temperature, VAD voltage, VDD voltage, VIS voltage difference, VIS voltage gradient
- SwitchesCurrent A/D control, Programmed input-output
Troubleshooting
- DiagnosticsDownloads a diagnostics file to attach to a bug report.
Shows in Vulpo
Quick Toggle card, Select card, Chart card, Apple Watch, Control Center.Information
- Installs
- 355 sharing analytics
- Connection
- Works locally
- Upkeep
- Part of Home Assistant
- Quality
- Silver on the quality scale
- Category
- Sensors, Temperature and humidity
- Kind
- Built-in integration
- Needs
- Built into Home Assistant
- Domain
onewire











