SenseAir CO_2 Sensor¶
senseair sensor platform allows you to use SenseAir CO_2 sensor
(website) with ESPHome.
As the communication with the SenseAir is done using UART, you need
to have an UART bus in your configuration with the
rx_pin connected to the TX pin of the
sensor and the
tx_pin connected to the RX Pin (it’s switched because the
TX/RX labels are from the perspective of the SenseAir sensor). Additionally, you need to set the baud rate to 9600.
# Example configuration entry uart: rx_pin: D0 tx_pin: D1 baud_rate: 9600 sensor: - platform: senseair co2: name: "SenseAir CO2 Value" update_interval: 60s
co2 (Required): The CO_2 data from the sensor in parts per million (ppm).
update_interval (Optional, Time): The interval to check the sensor. Defaults to
uart_id (Optional, ID): Manually specify the ID of the UART Component if you want to use multiple UART buses.
id (Optional, ID): Manually specify the ID used for actions.
G+ should be connected to power supply (supported voltage is 4.5 V to 5.25 V),
This action initiates a background calibration on the sensor with the given ID: the current CO2 level will be used as a reference for the 400ppm threshold. Ensure that the sensor is in a stable environment with fresh ambient air, preferably near a window that has already been opened for a sufficient time.
on_...: then: - senseair.background_calibration: my_senseair_id
This action requests the result of the background calibration procedure from the sensor with the given ID. The value will be printed in ESPHome logs.
Wait at least one sensor lamp cycle after having triggered the background calibration before requesting its result.
on_...: then: - senseair.background_calibration_result: my_senseair_id
This action requests the currently configured ABC interval from the sensor with the given ID. The value will be printed in ESPHome logs.
on_...: then: - senseair.abc_get_period: my_senseair_id
This action enables Automatic Baseline Calibration on the sensor with the given ID. ABC will be activated with the default interval of 180 hours.
on_...: then: - senseair.abc_enable: my_senseair_id
This action disables Automatic Baseline Calibration on the sensor with the given ID.
on_...: then: - senseair.abc_disable: my_senseair_id