zephyr

History

Marc Herbert 2cd51a33ce samples: make find_package(Zephyr...) REQUIRED This provides a better error message when building with CMake and forgetting ZEPHYR_BASE or not registering Zephyr in the CMake package registry. See parent commit for more details (split from parent for better readability). Signed-off-by: Marc Herbert <marc.herbert@intel.com>		2020-05-29 10:47:25 +02:00
..
boards	gpio: mcux: Convert convert to DT_INST defines	2020-04-23 17:07:41 -05:00
src	samples: sensor: Convert to new DT_INST macros	2020-03-31 07:09:33 -05:00
CMakeLists.txt	samples: make find_package(Zephyr...) REQUIRED	2020-05-29 10:47:25 +02:00
prj.conf	drivers: sensor: Migrate to new logger	2018-10-16 08:49:53 -04:00
README.rst	doc: fix broken file and zephyr-app refs	2019-10-08 15:42:32 -05:00
sample.yaml	samples: add test identifier	2019-03-29 17:44:11 -04:00

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>