Heart Rate Sensor

Browse source code on GitHub

Overview

A sensor application that demonstrates how to poll data from a heart rate sensor.

Requirements

• A supported heart rate sensor (e.g., MAX30101 or BH1790), available as heart-rate-sensor Devicetree alias.

Building and Running

This project configures a sensor on the board to enable the green LED and measure the reflected light with a photodiode. The raw data prints to the console. Further processing (not included in this sample) is required to extract a heart rate signal from the light measurement.

west build -b hexiwear/mk64f12 samples/sensor/heart_rate

Sample Output

GREEN=5731
GREEN=5750
GREEN=5748
GREEN=5741
GREEN=5735
GREEN=5737
GREEN=5736
GREEN=5748

<repeats endlessly>

See also

Sensor Interface