zephyr/samples/sensor/accel_polling
Miguel Gazquez f6f03867d8 samples: accel_polling: set sampling frequency when necessary
The accel_polling sample uses various sensor, but doesn't set a sampling
rate. But some sensors (like st,lsm6dso) have a default sampling
frequency of 0. So, depending on the sensor, the sample may not always
work.

There are two ways to fix this: either all drivers must set a valid
sampling rate, or the sample shall at least try to set a value if there
is none.

We propose here the second approach, wich should allow the sample to
work on more sensors out of the box.

Signed-off-by: Miguel Gazquez <miguel.gazquez@bootlin.com>
2024-07-29 14:21:24 +02:00
..
src
CMakeLists.txt
README.rst
prj.conf
sample.yaml

README.rst

.. _accel_polling:

Generic 3-Axis accelerometer polling sample
###########################################

Overview
********

This sample application demonstrates how to use 3-Axis accelerometers.

Building and Running
********************

This sample supports up to 10 3-Axis accelerometers. Each accelerometer needs
to be aliased as ``accelN`` where ``N`` goes from ``0`` to ``9``. For example:

.. code-block:: devicetree

  / {
  	aliases {
  			accel0 = &lis2dh;
  		};
  	};

Make sure the aliases are in devicetree, then build and run with:

.. zephyr-app-commands::
   :zephyr-app: samples/sensor/accel_polling
   :board: <board to use>
   :goals: build flash
   :compact:

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

.. code-block:: console

       lis2dh@19 [m/s^2]:    (  -6.013728,   -3.064320,    7.277760)
       lis2dh@19 [m/s^2]:    (  -6.128640,   -3.026016,    7.201152)
       lis2dh@19 [m/s^2]:    (  -6.090336,   -3.064320,    7.162848)
       lis2dh@19 [m/s^2]:    (  -6.128640,   -3.026016,    7.354368)
       lis2dh@19 [m/s^2]:    (  -6.166944,   -3.102624,    7.277760)
       lis2dh@19 [m/s^2]:    (  -6.128640,   -2.987712,    7.277760)
       lis2dh@19 [m/s^2]:    (  -6.052032,   -2.987712,    7.277760)
       lis2dh@19 [m/s^2]:    (  -6.166944,   -2.987712,    7.239456)
       lis2dh@19 [m/s^2]:    (  -6.090336,   -3.026016,    7.201152)