CUBIC CM1106 Single Beam NDIR CO2 Sensor Module

The cm1106 sensor platform allows you to use CM1106 CO2 sensors with ESPHome.

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CUBIC CM1106 Single Beam NDIR CO2 Sensor Module.

Communication with the CM1106 sensor is done via UART, so you need to define a UART bus in your configuration. Connect the rx_pin to the TX pin of the CM1106 and the tx_pin to the RX pin of the CM1106 (note that the TX/RX labels are from the sensor’s perspective). Additionally, set the baud rate to 9600 for proper communication.

# Example configuration entry
sensor:
  - platform: cm1106
    co2:
      name: CM1106 CO2 Value

Configuration variables

co2 (Optional): The CO2 data from the sensor in parts per million (ppm). All options from Sensor.
update_interval (Optional, Time): The interval to check the sensor. Defaults to 60s.
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.
automatic_baseline_calibration (Optional, boolean): CM1106 has automatic calibration procedure.
The automatic calibration cycle is the first 24 hours after powered on, and then the sensor will enter regular 15 days calibration cycle.
- Set this value to false to disable ABC on boot (recommended for most indoor sensors).
- Set this value to true to enable ABC on boot.
- Doesn’t send calibration command if not set (default sensor logic will be used).

`cm1106.calibrate_zero` Action

This action executes zero point calibration command on the sensor with the given ID.

To perform zero-point calibration, the CM1106 sensor must operate in a stable 400ppm CO₂ environment for at least 20 minutes before executing this function.

on_...:
  then:
    - cm1106.calibrate_zero: my_cm1106_id

You can provide an action to perform from Home Assistant

api:
  actions:
    - action: cm1106_calibrate_zero
      then:
        - cm1106.calibrate_zero: my_cm1106_id

Examples:

Button to start the calibration process:

button:
  - platform: template
    name: "CM1106 Calibration"
    entity_category: diagnostic
    on_press:
      then:
        - cm1106.calibrate_zero: my_cm1106_id

`cm1106.abc_enable` Action

This action enables automatic baseline calibration on the sensor with the given ID.

on_...:
  then:
    - cm1106.abc_enable: my_cm1106_id

`cm1106.abc_disable` Action

This action disables automatic baseline calibration on the sensor with the given ID.

on_...:
  then:
    - cm1106.abc_disable: my_cm1106_id