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MPR Pressure Sensor

Browse source code on GitHub

Overview

This sample application periodically (1Hz) measures atmospheric pressure in kilopascal. The result is written to the console.

References

• MPR: https://sensing.honeywell.com/micropressure-mpr-series

Wiring

This sample uses an MPRLS0025PA00001A sensor controlled using the i2c interface. Connect VIN, GND and Interface: SDA, SCL.

Building and Running

This project outputs sensor data to the console. It requires a sensor from the MPR series. It does not work on QEMU. In the sample below the Arduino Due board is used.

# From the root of the zephyr repository
west build -b arduino_due samples/sensor/mpr
west flash

Sample Output

pressure value: 101.976303 kPa
pressure value: 101.986024 kPa
pressure value: 101.989736 kPa
pressure value: 101.987424 kPa
pressure value: 101.992099 kPa
pressure value: 101.989171 kPa
pressure value: 101.984226 kPa

<repeats endlessly>

See also

Sensor Interface