ENS160 Sensor

The ens160 sensor platform allows you to use your ENS160 (datasheet) air-quality sensors with ESPHome. The I²C component is required to be set up in your configuration for this sensor to work.

Note

On first power-up of the ENS160 sensor, there is a 1 hour initial startup delay before readings will be available. For subsequent starts or reboots, there is a 3 minute warm up period before readings are available. Also, be aware that the ENS160 can take up to 1 second for sucessive data measurements to be ready.

../../_images/ens160.jpg

ENS160 Air Quality Sensor.

# Example configuration entry
sensor:
  - platform: ens160
    eco2:
      name: "ENS160 eCO2"
    tvoc:
      name: "ENS160 Total Volatile Organic Compounds"
    aqi:
      id: ens160_air_quality_index
      name: "ENS160 Air Quality Index"
    update_interval: 60s
    address: 0x53
    compensation:
      temperature: id_temperature_sensor
      humidity: id_humidity_sensor

Configuration variables:

  • eco2 (Required): Configuration for the eCO2 sensor.

    • name (Required, string): The name for the eCO2 sensor.

    • id (Optional, ID): Set the ID of this sensor for use in lambdas.

    • All other options from Sensor.

  • tvoc (Required): Configuration for the TVOC sensor.

    • name (Required, string): The name for the TVOC sensor.

    • id (Optional, ID): Set the ID of this sensor for use in lambdas.

    • All other options from Sensor.

  • aqi (Optional): Configuration for the air quality index sensor.

    • name (Required, string): The name for the AQI sensor.

    • id (Optional, ID): Set the ID of this sensor for use in lambdas.

    • All other options from Sensor.

  • update_interval (Optional, Time): The interval to check the sensor. Defaults to 60s. The update interval should be greater than the measurement frequency of the ENS160 which is up to 1 second.

Advanced:

  • address (Optional, int): Manually specify the I²C address of the sensor. Defaults to 0x53. Another address can be 0x52.

  • compensation (Optional): The block containing sensors used for compensation. Temperature and humidity compensation improves the accuracy of sensor readings. Without compensation, the ENS160 internally assumes 25°C temperature and 50% humidity, with readings noticeably diverting from real changes without compensation in temperature and humidity.

    • temperature (Required, ID): The ID of an external temperature sensor.

    • humidity (Required, ID): The ID of an external humidity sensor.

Example Text Sensor configuration

The Air Quality Index(AQI) from this sensor is a number between 1 and 5. The ENS160 (datasheet) states that “The AQI-UBA air quality index is derived from a guideline by the German Federal Environmental Agency based on a TVOC sum signal”. The following is an example configuration to convert the numeric ENS160 AQI to the rating text.

text_sensor:
  - platform: template
    name: "ENS160 Air Quality Rating"
    lambda: |-
      switch ( (int) (id(ens160_air_quality_index).state) ) {
        case 1: return {"Excellent"};
        case 2: return {"Good"};
        case 3: return {"Moderate"};
        case 4: return {"Poor"};
        case 5: return {"Unhealthy"};
        default: return {"Not Available"};
      }

See Also