DHT Temperature+Humidity Sensor¶
The DHT Temperature+Humidity sensor allows you to use your
sensors with ESPHome.
The DHT22 and DHT11 require external pull up resistors on the data line. To do this, solder
a resistor with about 4.7kΩ (anything in the range from 1kΩ to 10kΩ probably works fine, but
if you’re having issues try the 4.7kΩ recommended by the manufacturer) between
# Example configuration entry sensor: - platform: dht pin: D2 temperature: name: "Living Room Temperature" humidity: name: "Living Room Humidity" update_interval: 60s
pin (Required, Pin): The pin where the DHT bus is connected.
temperature (Required): The information for the temperature sensor.
humidity (Required): The information for the humidity sensor
model (Optional, int): Manually specify the DHT model, can be one of
SI7021and helps with some connection issues. Defaults to
AUTO_DETECT. Auto detection doesn’t work for the SI7021 chip.
update_interval (Optional, Time): The interval to check the sensor. Defaults to
accuracy_decimals value of the humidity levels is
0, as the DHT11 for which this was
originally written does not have a higher resolution. All other DHT sensors have a higher resolution, it’s worth
to configure them with
If you’re seeing lots of invalid temperature/humidity warnings in the logs, try manually setting the
DHT model with the
model: configuration variable. Other problems could be wrong pull-up resistor values
on the DATA pin or too long cables.