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Dallas Temperature Sensor

The dallas_temp component allows you to use DS18B20 (datasheet) and similar 1-Wire temperature sensors. A 1-Wire bus is required to be set up in your configuration for this sensor to work.

# Example configuration entries
sensor:
  # only one device
  - platform: dallas_temp
    name: temperature
    update_interval: 120s
  # specific address
  - platform: dallas_temp
    address: 0x1234567812345628
    name: temperature2
  # second device
  - platform: dallas_temp
    index: 1
    name: temperature1

Configuration variables

Section titled “Configuration variables”

  • address (Optional, int): The address of the sensor. Required if there is more than one device on the bus and index is not specified.

  • index (Optional, byte): The index (0-based) of the sensor. Required if there is more than one device on the bus and address is not specified. Note this index is based on the hardware addresses of the sensors and the order can change if sensors are changed, added, or removed.

  • resolution (Optional, int): An optional resolution from 9 to 12. Higher means more accurate. Defaults to the maximum for most Dallas temperature sensors: 12.

  • update_interval (Optional, Time): The interval that the sensors should be checked. Defaults to 60 seconds.

  • one_wire_id (Optional, One Wire): The ID of the 1-Wire bus to use. Required if there is more than one bus.

  • All other options from Sensor.

See Also

Section titled “See Also”