73 lines
2.5 KiB
ReStructuredText
73 lines
2.5 KiB
ReStructuredText
SGP40 Volatile Organic Compound Sensor
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======================================
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.. seo::
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:description: Instructions for setting up SGP40 Volatile Organic Compound sensor
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:image: sgp40.jpg
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The ``sgp40`` sensor platform allows you to use your Sensirion SGP40 VOC sensor
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(`datasheet <https://www.sensirion.com/fileadmin/user_upload/customers/sensirion/Dokumente/9_Gas_Sensors/Sensirion_Gas_Sensors_SGP40_Datasheet.pdf>`__) with ESPHome.
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The :ref:`I²C Bus <i2c>` is required to be set up in your configuration for this sensor to work.
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.. note::
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This sensor need to be driven at a rate of 1Hz. Because of this, the
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sensor will be read out on device once a second separately from the
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update_interval. The state will be reported to other components, or
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the front end at the update_interval, saving wifi power and network
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communication.
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.. figure:: images/sgp40.jpg
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:align: center
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:width: 80.0%
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.. code-block:: yaml
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# Example configuration entry
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sensor:
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- platform: sgp40
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name: "Workshop VOC"
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Configuration variables:
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------------------------
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- **name** (**Required**, string): The name for the CO₂eq sensor.
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- **id** (*Optional*, :ref:`config-id`): Set the ID of this sensor for use in lambdas.
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- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the sensor. Defaults to ``60s``
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- **store_baseline** (*Optional*, boolean): Stores and retrieves the baseline information for quicker startups. Defaults to ``true``
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- **compensation** (*Optional*): The block containing sensors used for compensation. If not set defaults will be used.
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- **temperature_source** (*Optional*, :ref:`config-id`): Give an external temperature sensor ID
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here. This can improve the sensor's internal calculations. Defaults to ``25``
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- **humidity_source** (*Optional*, :ref:`config-id`): Give an external humidity sensor ID
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here. This can improve the sensor's internal calculations. Defaults to ``50``
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- All other options from :ref:`Sensor <config-sensor>`.
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Example With Compensation
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-------------------------
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.. code-block:: yaml
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# Example configuration entry
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sensor:
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- platform: sgp40
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name: "Workshop VOC"
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update_interval: 5s
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compensation:
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humidity_source: dht1_hum
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temperature_source: dht1_temp
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See Also
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--------
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- :ref:`sensor-filters`
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- :doc:`dht`
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- :doc:`dht12`
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- :doc:`hdc1080`
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- :doc:`htu21d`
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- :doc:`sht3xd`
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- :apiref:`sgp40/sgp40.h`
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- :ghedit:`Edit`
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