143 lines
4.0 KiB
ReStructuredText
143 lines
4.0 KiB
ReStructuredText
SenseAir CO_2 Sensor
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====================
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.. seo::
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:description: Instructions for setting up SenseAir S8 CO2 sensor
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:image: senseair_s8.jpg
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:keywords: senseair_s8
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The ``senseair`` sensor platform allows you to use SenseAir CO_2 sensor
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(`website`_) with ESPHome.
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.. figure:: images/senseair_s8-full.jpg
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:align: center
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:width: 50.0%
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SenseAir S8 CO_2 Sensor.
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.. _website: https://senseair.com/products/size-counts/s8-residential/
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As the communication with the SenseAir is done using UART, you need
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to have an :ref:`UART bus <uart>` in your configuration with the ``rx_pin`` connected to the TX pin of the
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sensor and the ``tx_pin`` connected to the RX Pin (it's switched because the
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TX/RX labels are from the perspective of the SenseAir sensor). Additionally, you need to set the baud rate to 9600.
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.. code-block:: yaml
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# Example configuration entry
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uart:
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rx_pin: D0
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tx_pin: D1
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baud_rate: 9600
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sensor:
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- platform: senseair
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co2:
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name: "SenseAir CO2 Value"
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update_interval: 60s
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Configuration variables:
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------------------------
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- **co2** (**Required**): The CO_2 data from the sensor in parts per million (ppm).
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- All options from :ref:`Sensor <config-sensor>`.
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- **update_interval** (*Optional*, :ref:`config-time`): The interval to check the
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sensor. Defaults to ``60s``.
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- **uart_id** (*Optional*, :ref:`config-id`): Manually specify the ID of the :ref:`UART Component <uart>` if you want
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to use multiple UART buses.
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for actions.
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.. figure:: images/senseair_s8-pins.jpg
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:align: center
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:width: 80.0%
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Pins on the SenseAir S8. Only the ones marked with a red circle need to be connected.
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.. note::
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``G+`` should be connected to power supply (supported voltage is 4.5 V to 5.25 V), ``G0`` to ``GND`` pin
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.. _senseair-background_calibration_action:
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``senseair.background_calibration`` Action
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------------------------------------------
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This :ref:`action <config-action>` initiates a background calibration on the sensor with the given ID: the current
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CO2 level will be used as a reference for the 400ppm threshold. Ensure that the sensor is in a stable environment with
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fresh ambient air, preferably near a window that has already been opened for a sufficient time.
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.. code-block:: yaml
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on_...:
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then:
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- senseair.background_calibration: my_senseair_id
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.. _senseair-background_calibration_result_action:
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``senseair.background_calibration_result`` Action
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-------------------------------------------------
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This :ref:`action <config-action>` requests the result of the background calibration procedure from the sensor
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with the given ID. The value will be printed in ESPHome logs.
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Wait at least one sensor lamp cycle after having triggered the background calibration before requesting its result.
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.. code-block:: yaml
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on_...:
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then:
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- senseair.background_calibration_result: my_senseair_id
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.. _senseair-abc_get_period_action:
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``senseair.abc_get_period`` Action
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----------------------------------
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This :ref:`action <config-action>` requests the currently configured ABC interval from the sensor with the given ID.
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The value will be printed in ESPHome logs.
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.. code-block:: yaml
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on_...:
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then:
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- senseair.abc_get_period: my_senseair_id
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.. _senseair-abc_enable_action:
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``senseair.abc_enable`` Action
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------------------------------
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This :ref:`action <config-action>` enables Automatic Baseline Calibration on the sensor with the given ID.
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ABC will be activated with the default interval of 180 hours.
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.. code-block:: yaml
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on_...:
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then:
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- senseair.abc_enable: my_senseair_id
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.. _senseair-abc_disable_action:
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``senseair.abc_disable`` Action
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-------------------------------
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This :ref:`action <config-action>` disables Automatic Baseline Calibration on the sensor with the given ID.
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.. code-block:: yaml
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on_...:
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then:
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- senseair.abc_disable: my_senseair_id
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See Also
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--------
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- :ref:`sensor-filters`
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- :apiref:`senseair/senseair.h`
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- :ghedit:`Edit`
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