zephyr

History

Sebastian Bøe 55ee53ce91 cmake: Prepend 'cmake_minimum_required()' into 'app' build scripts Prepend the text 'cmake_minimum_required(VERSION 3.8.2)' into the application and test build scripts. Modern versions of CMake will spam users with a deprecation warning when the toplevel CMakeLists.txt does not specify a CMake version. This is documented in bug #8355. To resolve this we include a cmake_minimum_required() line into the toplevel build scripts. Additionally, cmake_minimum_required is invoked from within boilerplate.cmake. The highest version will be enforced. This patch allows us to afterwards change CMake policy CMP000 from OLD to NEW which in turn finally rids us of the verbose warning. The extra boilerplate is considered more acceptable than the verbosity of the CMP0000 policy. Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>		2018-08-15 04:06:50 -07:00
..
src	sensors: Add separation between ambient and die temperature	2018-04-03 22:29:11 -04:00
CMakeLists.txt	cmake: Prepend 'cmake_minimum_required()' into 'app' build scripts	2018-08-15 04:06:50 -07:00
prj.conf
README.rst
sample.yaml	samples: Build hts221 sensor sample only on supported boards	2018-01-31 10:17:58 -06:00

README.rst

.. _hts221:

HTS221: Temperature and Humidity Monitor
########################################

Overview
********
This sample periodically reads temperature and humidity from the HTS221
Temperature & Humidity Sensor and displays it on the console


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

This sample uses the HTS221 sensor controlled using the I2C interface.

References
**********

 - HTS211: http://www.st.com/en/mems-and-sensors/hts221.html

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

 This project outputs sensor data to the console. It requires an HTS221
 sensor, which is present on the disco_l475_iot1 board.

.. zephyr-app-commands::
   :zephyr-app: samples/sensors/hts221
   :board: disco_l475_iot1
   :goals: build
   :compact:

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

 .. code-block:: console

    Temperature:25.3 C
    Relative Humidity:40%
    Temperature:25.3 C
    Relative Humidity:40%
    Temperature:25.3 C
    Relative Humidity:40%
    Temperature:25.3 C
    Relative Humidity:40%

    <repeats endlessly every 2 seconds>