SDP3x / SDP800 Series Differential Pressure Sensor

The SDP3x Differential Pressure sensor allows you to use your SDP3x (datasheet, sparkfun) or SDP800 Series (datasheet) sensors with ESPHome.


SDP31 Differential Pressure Sensor. (Credit: Sparkfun, image cropped and compressed)

To use the sensor, set up an I²C Bus and connect the sensor to the specified pins.

# Example configuration entry
- platform: sdp3x
  name: "HVAC Filter Pressure drop"
  id: filter_pressure

Configuration variables:

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

  • id (Optional, ID): Set the ID of this sensor for lambdas/multiple sensors.

  • address (Optional, int): The I²C address of the sensor. Defaults to 0x21.

  • measurement_mode (Optional): The measurement mode of the sensor. Valid options are differential_pressure and mass_flow. Defaults to differential_pressure.

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

  • All other options from Sensor.

See Also