DHT Sensor


The dht sensor platform allows you to get the current temperature and humidity from a DHT11, DHT22 or AM2302 device.

Configuration

To use your DHTxx sensor in your installation, add the following to your configuration.yaml file:

# Example configuration.yaml entry
sensor:
  platform: dht
  sensor: DHT22
  pin: 23
  monitored_conditions:
    - temperature
    - humidity

Configuration variables:

  • sensor (Required): The sensor type, supported devices are DHT11, DHT22, and AM2302.
  • pin (Required): The pin the sensor is connected to.
  • name (Optional): The name of the sensor.
  • monitored_conditions array (Required): Conditions to monitor. Available conditions are only temperature and humidity.
  • temperature_offset (Optional): Add or subtract a value from the temperature.
  • humidity_offset (Optional): Add or subtract a value from the humidity.

The name of the pin to which the sensor is connected has different names on different platforms. ‘P8_11’ for Beaglebone, ‘23’ for Raspberry Pi.

Example

An example for a Raspberry Pi 3 with a DHT22 sensor connected to GPIO4 (pin 7):

sensor:
  - platform: dht
    sensor: DHT22
    pin: 4
    temperature_offset: 2.1
    humidity_offset: -3.2
    monitored_conditions:
      - temperature
      - humidity