zephyr

History

Tomasz Bursztyka e18fcbba5a device: Const-ify all device driver instance pointers Now that device_api attribute is unmodified at runtime, as well as all the other attributes, it is possible to switch all device driver instance to be constant. A coccinelle rule is used for this: @r_const_dev_1 disable optional_qualifier @ @@ -struct device * +const struct device * @r_const_dev_2 disable optional_qualifier @ @@ -struct device * const +const struct device * Fixes #27399 Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>		2020-09-02 13:48:13 +02:00
..
src	device: Const-ify all device driver instance pointers	2020-09-02 13:48:13 +02:00
CMakeLists.txt	samples: make find_package(Zephyr...) REQUIRED	2020-05-29 10:47:25 +02:00
README.rst	doc: fix broken file and zephyr-app refs	2019-10-08 15:42:32 -05:00
prj.conf	…
sample.yaml	…

README.rst

.. _lsm303dlhc:

LSM303DLHC: Magnetometer and Accelerometer data Monitor
#######################################################

Overview
********
This sample application periodically reads magnetometer and accelerometer data
from the LSM303DLHC eCompass module's sensors, and displays the sensor data
on the console.

Requirements
************

This sample uses the LSM303DLHC, ST MEMS system-in-package featuring a
3D digital linear acceleration sensor and a 3D digital magnetic sensor,
controlled using the I2C interface.

References
**********

For more information about the LSM303DLHC eCompass module, see
http://www.st.com/en/mems-and-sensors/lsm303dlhc.html

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

This project outputs sensor data to the console. It requires a LSM303DLHC
system-in-package, which is present on the stm32f3_disco board

.. zephyr-app-commands::
   :zephyr-app: samples/sensor/lsm303dlhc
   :board: stm32f3_disco
   :goals: build
   :compact:

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

.. code-block:: console

   Magnetometer data:
   ( x y z ) = ( 0.531818  -0.435454  -0.089090 )
   Accelerometer data:
   ( x y z ) = ( -0.078127  -0.347666  1.105502 )
   Magnetometer data:
   ( x y z ) = ( -0.003636  0.297272  -0.255454 )
   Accelerometer data:
   ( x y z ) = ( 0.074221  -0.304696  0.972685 )

   <repeats endlessly every 2 seconds>