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Magpie Embedded
bf664b88cd
|
1 month ago | |
|---|---|---|
| .. | ||
| boards | ||
| src | ||
| CMakeLists.txt | ||
| README.rst | ||
| prj.conf | ||
| sample.yaml | ||
README.rst
.. zephyr:code-sample:: heart_rate
:name: Heart Rate Sensor
:relevant-api: sensor_interface
Get heart rate data from a sensor (polling mode).
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.
.. zephyr-app-commands::
:zephyr-app: samples/sensor/heart_rate
:board: hexiwear/mk64f12
: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>