mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-18 11:15:36 +01:00
72 lines
3.0 KiB
ReStructuredText
72 lines
3.0 KiB
ReStructuredText
SHT4X Temperature and Humidity Sensor
|
|
=====================================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up SHT4X temperature and humidity sensor
|
|
:image: sht4x.jpg
|
|
|
|
The ``sht4x`` sensor platform allows you to use your SHT4X temperature and humidity sensor
|
|
(`datasheet <https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHT4x_Datasheet.pdf>`__, `Adafruit`_) with ESPHome.
|
|
|
|
The :ref:`I²C Bus <i2c>` is required to be set up in your configuration for this sensor to work.
|
|
|
|
.. figure:: images/sht4x-full.jpg
|
|
:align: center
|
|
:width: 80.0%
|
|
|
|
.. _Adafruit: https://www.adafruit.com/product/4885
|
|
|
|
.. code-block:: yaml
|
|
|
|
sensor:
|
|
- platform: sht4x
|
|
temperature:
|
|
name: "Temperature"
|
|
humidity:
|
|
name: "Relative Humidity"
|
|
|
|
Configuration variables:
|
|
------------------------
|
|
|
|
- **temperature** (*Optional*): Temperature.
|
|
|
|
- **name** (**Required**, string): The name of the sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **humidity** (*Optional*): Relative Humidity.
|
|
|
|
- **name** (**Required**, string): The name of the sensor.
|
|
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
- **precision** (*Optional*, string): The measurement precision, either ``High``, ``Med`` or ``Low``. Default is ``High``.
|
|
- **heater_max_duty** (*Optional*, float): The maximum duty cycle of the heater (limited to ``0.05``). Default is ``0.0``, i.e. heater off.
|
|
- **heater_power** (*Optional*, string): The heater power, either ``High``, ``Med`` or ``Low``. Default is ``High``.
|
|
- **heater_time** (*Optional*, string): The length of time to run the heater, either ``Long`` (1000ms) or ``Short`` (100ms). Default is ``Long``.
|
|
- **address** (*Optional*, int): Manually specify the I²C address of the sensor. Default is ``0x44``.
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the sensor. Defaults to ``60s``.
|
|
|
|
Heater Configuration:
|
|
---------------------
|
|
|
|
The SHT4X includes an on-chip heater which is intended to remove condensation from the sensor that
|
|
has been sprayed onto the sensor or in high humidity environments. This can help
|
|
maintain accurate humidity measurements.
|
|
|
|
The heater can be enabled by setting ``heater_max_duty`` up to a maximum duty cycle
|
|
of ``5%`` (``0.05``). This runs the heater on a regular interval. While the heater
|
|
is in operation the sensor disables measurements so no updates will be published.
|
|
|
|
See the (`datasheet <https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/2_Humidity_Sensors/Datasheets/Sensirion_Humidity_Sensors_SHT4x_Datasheet.pdf>`__)
|
|
for more information about heater operation.
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :doc:`/components/sensor/sht3xd`
|
|
- :doc:`/components/sensor/shtcx`
|
|
- :ref:`sensor-filters`
|
|
- :apiref:`sht4x/sht4x.h`
|
|
- :ghedit:`Edit`
|