SEN6x Series Environmental Sensor

The sen6x sensor platform allows you to use your Sensirion SEN62, SEN63C, SEN65, SEN66, SEN68 and SEN69C Environmental sensor (datasheet) sensors with ESPHome.

The I²C Bus is required to be set up in your configuration for this sensor to work.

Sensor	PM	RH/T	VOC	NOx	CO₂	HCHO
SEN62	✓	✓
SEN63C	✓	✓			✓
SEN65	✓	✓	✓	✓
SEN66	✓	✓	✓	✓	✓
SEN68	✓	✓	✓	✓		✓
SEN69C	✓	✓	✓	✓	✓	✓

# Example configuration entry
sensor:
  - platform: sen6x
    type: SEN69C
    pm_1_0:
      name: PM <1µm Weight concentration
    pm_2_5:
      name: PM <2.5µm Weight concentration
    pm_4_0:
      name: PM <4µm Weight concentration
    pm_10_0:
      name: PM <10µm Weight concentration
    temperature:
      name: Temperature
    humidity:
      name: Humidity
    voc:
      name: VOC
    nox:
      name: NOx
    co2:
      name: Carbon Dioxide
    formaldehyde:
      name: Formaldehyde

Configuration variables

• type (Optional): The type of sensor. If not specified, sensor type will be auto-detected. If specified, the value will override auto-detection. In case of mismatch, a warning will be provided in the log.

  • SEN62
  • SEN63C
  • SEN65
  • SEN66
  • SEN68
  • SEN69C

• pm_1_0 (Optional): The information for the Weight Concentration sensor for fine particles up to 1μm. Readings in µg/m³.

  • All options from Sensor.

• pm_2_5 (Optional): The information for the Weight Concentration sensor for fine particles up to 2.5μm. Readings in µg/m³.

  • All options from Sensor.

• pm_4_0 (Optional): The information for the Weight Concentration sensor for coarse particles up to 4μm. Readings in µg/m³.

  • All options from Sensor.

• pm_10_0 (Optional): The information for the Weight Concentration sensor for coarse particles up to 10μm. Readings in µg/m³.

  • All options from Sensor.

• temperature (Optional): Temperature.

  • All options from Sensor.

• humidity (Optional): Relative Humidity.

  • All options from Sensor.

• voc (Optional): VOC Index. Note: only available with SEN65, SEN66, SEN68 or SEN69C. The sensor will be ignored on unsupported models.

  • All options from Sensor.

• nox (Optional): NOx Index. Note: only available with SEN65, SEN66, SEN68 or SEN69C. The sensor will be ignored on unsupported models.

  • All options from Sensor.

• co2 (Optional): The carbon dioxide concentration in ppm. Note: only available with SEN63C, SEN66 or SEN69C. The sensor will be ignored on unsupported models.

  • All options from Sensor.

• formaldehyde (Optional): The Formaldehyde (HCHO) concentration in ppb. Note: only available with SEN68 or SEN69C. The sensor will be ignored on unsupported models.

  • All options from Sensor.

• address (Optional, int): Manually specify the I²C address of the sensor. Defaults to 0x6B.

• update_interval (Optional, Time): The interval to check the sensor. Defaults to 60s.

NOTE

The sensor needs about a minute “warm-up”. The VOC and NOx gas index algorithm needs a number of samples before the values stabilize.

Wiring

The sensor has a JST GHR-06V-S 6 pin type connector, with a 1.25mm pitch. The cable needs this connector:

Pins 2 and 5 (GND) and pins 1 and 6 (VDD) are connected internally.

For better stability, the SDA and SCL lines require suitable pull-up resistors.

See Also

• Sensor Filters
• Sen5x Series Environmental sensor
• Absolute Humidity
• SDS011 Particulate Matter Sensor
• PMSX003 Particulate Matter Sensor
• CCS811 eCO_2 and Volatile Organic Compound Sensor
• SCD4X CO₂, Temperature and Relative Humidity Sensor
• SPS30 Particulate Matter Sensor
• SGP40 Volatile Organic Compound Sensor and SGP41 VOC and NOx Sensor
• API Reference: sen6x.h