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Add AM2120 model to dht (#3559)

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components/sensor/dht.rst
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@ -6,12 +6,13 @@ DHT Temperature+Humidity Sensor
:image: dht.jpg
:keywords: DHT11, DHT21, DHT22, AMS2301, AM2302, RHT03, SI7021
The DHT Temperature+Humidity sensor allows you to use your
The DHT Temperature+Humidity sensor allows you to use your
- DHT11 (`datasheet <https://akizukidenshi.com/download/ds/aosong/DHT11.pdf>`__, `Adafruit <https://www.adafruit.com/product/386>`__),
- DHT21/DHT22 (`datasheet <https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf>`__, `Adafruit <https://www.adafruit.com/product/385>`__),
- AMS2301/AM2302 (`datasheet <https://cdn-shop.adafruit.com/datasheets/Digital+humidity+and+temperature+sensor+AM2302.pdf>`__, `Adafruit <https://www.adafruit.com/product/393>`__),
- RHT03 (`datasheet <https://cdn.sparkfun.com/datasheets/Sensors/Weather/RHT03.pdf>`__, `SparkFun <https://cdn.sparkfun.com/datasheets/Sensors/Weather/RHT03.pdf>`__) and
- DHT11 (`datasheet <https://akizukidenshi.com/download/ds/aosong/DHT11.pdf>`__, `Adafruit <https://www.adafruit.com/product/386>`__),
- DHT21/DHT22 (`datasheet <https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf>`__, `Adafruit <https://www.adafruit.com/product/385>`__),
- AMS2301/AM2302 (`datasheet <https://cdn-shop.adafruit.com/datasheets/Digital+humidity+and+temperature+sensor+AM2302.pdf>`__, `Adafruit <https://www.adafruit.com/product/393>`__),
- AM2120 (`datasheet <https://www.micros.com.pl/mediaserver/UPAM2120_0004.pdf>`__),
- RHT03 (`datasheet <https://cdn.sparkfun.com/datasheets/Sensors/Weather/RHT03.pdf>`__, `SparkFun <https://cdn.sparkfun.com/datasheets/Sensors/Weather/RHT03.pdf>`__) and
- SI7021 (one wire Sonoff version) (`datasheet <https://cdn.sparkfun.com/assets/b/1/b/8/5/Si7021-A20.pdf>`__, `SparkFun <https://cdn.sparkfun.com/assets/b/1/b/8/5/Si7021-A20.pdf>`__)
sensors with ESPHome.
@ -59,20 +60,20 @@ Configuration variables:
- **name** (**Required**, string): The name for the humidity sensor.
- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
- All other options from :ref:`Sensor <config-sensor>`.
- **model** (*Optional*, int): Manually specify the DHT model, can be
one of ``AUTO_DETECT``, ``DHT11``, ``DHT22``, ``DHT22_TYPE2``, ``AM2302``, ``RHT03``, ``SI7021``
one of ``AUTO_DETECT``, ``DHT11``, ``DHT22``, ``DHT22_TYPE2``, ``AM2302``, ``RHT03``, ``SI7021``, ``AM2120``
and helps with some connection issues. Defaults to ``AUTO_DETECT``. Auto detection doesn't work for the SI7021 chip.
- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the
sensor. Defaults to ``60s``.
.. note::
The default ``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
The default ``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 ``accuracy_decimals: 1``.
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.