zephyr

History

Anas Nashif ba7d730e9b tests/samples: use integration_plaforms in more tests/samples integration_platforms help us control what get built/executed in CI and for each PR submitted. They do not filter out platforms, instead they just minimize the amount of builds/testing for a particular tests/sample. Tests still run on all supported platforms when not in integration mode. Signed-off-by: Anas Nashif <anas.nashif@intel.com>		2022-11-29 16:03:23 +01:00
..
boards	samples: sensors: Remove label property from devicetree overlays	2022-07-19 08:23:35 -05:00
src	includes: prefer <zephyr/kernel.h> over <zephyr/zephyr.h>	2022-09-05 16:31:47 +02:00
CMakeLists.txt
prj.conf	sensors: Remove unnecessary Kconfig setting of sensors	2022-07-25 15:18:56 +02:00
README.rst	samples: sensor: doc: fix a code block formatting issue	2022-11-22 12:54:44 +09:00
sample.yaml	tests/samples: use integration_plaforms in more tests/samples	2022-11-29 16:03:23 +01:00

README.rst

.. _stm32_vbat_sensor:

STM32 VBat Sensor
#################

Overview
********

This sample reads the Vbat from the STM32 Internal
Sensor and displays the results.

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

In order to run this sample, make sure to enable ``stm32_vbat`` node in your
board DT file or with a board overlay in the samples/sensor/stm32_temp_sensor/boards :


.. code-block:: dts

    stm32_vbat: stm32vbat {
        compatible = "st,stm32-vbat";
        io-channels = <&adc1 14>;
        ratio = <3>;
        status = "okay";
    };


Enable the corresponding ADC, with the correct vref value (in mV)

.. code-block:: dts

    &adc1 {
	vref-mv = <3000>;
	status = "okay";
    };


.. zephyr-app-commands::
   :zephyr-app: samples/sensor/stm32_vbat_sensor
   :board: nucleo_g071rb
   :goals: build
   :compact:

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

.. code-block:: console

   Current Vbat voltage: 3.04 V