zephyr

History

Kumar Gala d711e7b7d8 samples: sensor: Convert to new DT_INST macros Convert older DT_INST_ macro use the new include/devicetree.h DT_INST macro APIs. Signed-off-by: Kumar Gala <kumar.gala@linaro.org>		2020-03-31 07:09:33 -05:00
..
src	samples: sensor: Convert to new DT_INST macros	2020-03-31 07:09:33 -05:00
CMakeLists.txt	…
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>