MAX30101 Heart Rate Sensor

Overview

A sensor application that demonstrates how to poll data from the max30101 heart rate sensor.

Building and Running

This project configures the max30101 sensor on the Hexiwear board to enable the green LED and measure the reflected light with a photodiode. The raw ADC data prints to the console. Further processing (not included in this sample) is required to extract a heart rate signal from the light measurement.

Using west:

west build -b hexiwear_k64 samples/sensors/max30101

Using CMake and ninja:

cmake -B build -GNinja -DBOARD=hexiwear_k64 samples/sensors/max30101
ninja -C build

Sample Output

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

<repeats endlessly>