zephyr

History

Torsten Rasmussen 1cccc8a8fe cmake: increase minimal required version to 3.20.0 Move to CMake 3.20.0. At the Toolchain WG it was decided to move to CMake 3.20.0. The main reason for increasing CMake version is better toolchain support. Better toolchain support is added in the following CMake versions: - armclang, CMake 3.15 - Intel oneAPI, CMake 3.20 - IAR, CMake 3.15 and 3.20 Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>		2021-08-20 09:47:34 +02:00
..
boards	…
src	…
CMakeLists.txt	cmake: increase minimal required version to 3.20.0	2021-08-20 09:47:34 +02:00
README.rst	…
prj.conf	…
sample.yaml	…

README.rst

.. _max30101:

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 :ref:`hexiwear_k64` 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.

.. zephyr-app-commands::
   :zephyr-app: samples/sensor/max30101
   :board: hexiwear_k64
   :goals: build
   :compact:

Sample Output
=============

.. code-block:: console

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

<repeats endlessly>