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77 lines
3.0 KiB
ReStructuredText
77 lines
3.0 KiB
ReStructuredText
DHT Temperature+Humidity Sensor
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===============================
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The DHT Temperature+Humidity sensor allows you to use your DHT11
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(`datasheet <https://akizukidenshi.com/download/ds/aosong/DHT11.pdf>`__,
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`adafruit <https://www.adafruit.com/product/386>`__), DHT22
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(`datasheet <https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf>`__,
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`adafruit <https://www.adafruit.com/product/385>`__), AM2302
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(`datasheet <https://cdn-shop.adafruit.com/datasheets/Digital+humidity+and+temperature+sensor+AM2302.pdf>`__,
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`adafruit <https://www.adafruit.com/product/393>`__) and RHT03
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(`datashet <https://cdn.sparkfun.com/datasheets/Sensors/Weather/RHT03.pdf>`__,
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`sparkfun <https://cdn.sparkfun.com/datasheets/Sensors/Weather/RHT03.pdf>`__)
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sensors with esphomelib.
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.. figure:: /esphomeyaml/components/sensor/images/dht22-full.jpg
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:align: center
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:target: `Adafruit`_
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:width: 50.0%
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DHT22 Temperature & Humidity Sensor. Image by `Adafruit`_.
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.. _Adafruit: https://www.adafruit.com/product/385
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|image0|
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.. |image0| image:: /esphomeyaml/components/sensor/images/temperature-humidity.png
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:class: align-center
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:width: 80.0%
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.. code:: yaml
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# Example configuration entry
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sensor:
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- platform: dht
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pin: D2
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temperature:
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name: "Living Room Temperature"
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humidity:
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name: "Living Room Humidity"
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update_interval: 15s
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Configuration variables:
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~~~~~~~~~~~~~~~~~~~~~~~~
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- **pin** (**Required**, `pin </esphomeyaml/configuration-types.html#pin>`__): The pin where the DHT bus is connected.
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- **temperature** (**Required**): The information for the temperature
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sensor
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- **name** (**Required**, string): The name for the temperature
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sensor.
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- All other options from
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`Sensor </esphomeyaml/components/sensor/index.html#base-sensor-configuration>`__
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and `MQTT
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Component </esphomeyaml/components/mqtt.html#mqtt-component-base-configuration>`__.
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- **humidity** (**Required**): The information for the humidity sensor
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- **name** (**Required**, string): The name for the humidity sensor.
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- All other options from
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`Sensor </esphomeyaml/components/sensor/index.html#base-sensor-configuration>`__
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and `MQTT
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Component </esphomeyaml/components/mqtt.html#mqtt-component-base-configuration>`__.
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- **model** (*Optional*, int): Manually specify the DHT model, can be
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one of ``AUTO_DETECT``, ``DHT11``, ``DHT22``, ``AM2303``, ``RHT03``
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and helps with some connection issues. Defaults to ``AUTO_DETECT``.
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- **update_interval** (*Optional*, `time </esphomeyaml/configuration-types.html#time>`__): The interval to check the
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sensor. Defaults to ``15s``.
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- **id** (*Optional*, `id </esphomeyaml/configuration-types.html#id>`__): Manually specify the ID used for code
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generation.
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.. note::
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If you're seeing lots of invalid temperature/humidity warnings in the logs, try manually setting the
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DHT model with the ``model:`` configuration variable. Other problems could be wrong pull-up resistor values
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on the DATA pin or too long cables.
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