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64 lines
3.0 KiB
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Panasonic SN-GCJA5 Particulate Matter Sensor
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============================================
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.. seo::
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:description: Instructions for setting up Panasonic SN-GCJA5 Particulate matter sensors
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:image: gcja5.svg
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The ``gcja5`` sensor platform allows you to use your Panasonic SN-GCJA5 laser based particulate matter sensor
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(`datasheet <https://na.industrial.panasonic.com/products/sensors/air-quality-gas-flow-sensors/lineup/laser-type-pm-sensor/series/123557/model/123559>`__)
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sensors with ESPHome.
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As the communication with the GCJA5 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 SEND/TX. Additionally, you need to set the baud rate to 9600, and you
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MUST have ``EVEN`` parity.
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The sensor itself will push values every second. You may wish to :ref:`filter <sensor-filters>` this value to reduce the amount of data you are ingesting.
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The sensor will internally track changes to the Laser Diode and Photo Diode over time to adjust and ensure accuracy.
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Based on continous runtime, the sensor is rated to last at least 5 years.
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.. code-block:: yaml
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# Example configuration entry
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sensor:
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- platform: gcja5
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pm_1_0:
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name: "Particulate Matter <1.0µm Concentration"
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pm_2_5:
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name: "Particulate Matter <2.5µm Concentration"
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pm_10_0:
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name: "Particulate Matter <10.0µm Concentration"
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Configuration variables:
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------------------------
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- **pm_1_0** (*Optional*): Mass of particles with a diameter of 1 micrometres or less (μg/m^3).
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All options from :ref:`Sensor <config-sensor>`.
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- **pm_2_5** (*Optional*): Mass of particles with a diameter of 2.5 micrometres or less (μg/m^3).
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All options from :ref:`Sensor <config-sensor>`.
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- **pm_10_0** (*Optional*): Mass of particles with a diameter of 10 micrometres or less (μg/m^3).
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All options from :ref:`Sensor <config-sensor>`.
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- **pm_10_0** (*Optional*): Mass of particles with a diameter of 10 micrometres or less (μg/m^3).
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All options from :ref:`Sensor <config-sensor>`.
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- **pmc_0_3** (*Optional*): Count of particles with diameter > 0.3 um in 0.1 L of air (#/0.1L).
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All options from :ref:`Sensor <config-sensor>`.
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- **pmc_0_5** (*Optional*): Count of particles with diameter > 0.5 um in 0.1 L of air (#/0.1L).
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All options from :ref:`Sensor <config-sensor>`.
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- **pmc_1_0** (*Optional*): Count of particles with diameter > 1 um in 0.1 L of air (#/0.1L).
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All options from :ref:`Sensor <config-sensor>`.
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- **pmc_2_5** (*Optional*): Count of particles with diameter > 2.5 um in 0.1 L of air (#/0.1L).
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All options from :ref:`Sensor <config-sensor>`.
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- **pmc_5_0** (*Optional*): Count of particles with diameter > 5 um in 0.1 L of air (#/0.1L).
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All options from :ref:`Sensor <config-sensor>`.
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- **pmc_10_0** (*Optional*): Count of particles with diameter > 10 um in 0.1 L of air (#/0.1L).
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All options from :ref:`Sensor <config-sensor>`.
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See Also
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--------
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- :doc:`/components/sensor/gcja5`
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- :ref:`sensor-filters`
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- :apiref:`gcja5/gcja5.h`
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- :ghedit:`Edit`
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