zephyr

History

Carles Cufi 6656214af2 boards: nrf52_pca10040: Rename to nrf52dk_nrf52832 The board name for the nRF52 DK, so far known as nrf52_pca10040, is renamed to nrf52dk_nrf52832. Its documentation and all references to its name in the tree are updated accordingly. Overlay and configuration files specific to this board are also renamed, to match the new board name. Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>		2020-04-06 13:09:07 +02:00
..
boards	boards: nrf52_pca10040: Rename to nrf52dk_nrf52832	2020-04-06 13:09:07 +02:00
src	…
CMakeLists.txt	…
README.rst	boards: nrf52_pca10040: Rename to nrf52dk_nrf52832	2020-04-06 13:09:07 +02:00
prj.conf	…
sample.yaml	boards: nrf52_pca10040: Rename to nrf52dk_nrf52832	2020-04-06 13:09:07 +02:00

README.rst

.. _dht:

DHT: Aosong DHT Digital-output Humidity and Temperature Sensor
##############################################################

Description
***********

This sample application periodically (0.5 Hz) measures the ambient
temperature and humidity. The result is written to the console.

Wiring
*******

This sample uses an external breakout for the sensor.  A devicetree
overlay must be provided to identify the sensor variant and the GPIO
used to control the sensor.

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

After providing a devicetree overlay that specifies the sensor location,
build this sample app using:

.. zephyr-app-commands::
   :zephyr-app: samples/sensor/dht
   :board: nrf52dk_nrf52832
   :goals: build flash

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

.. code-block:: console

   *** Booting Zephyr OS build zephyr-v2.1.0-329-g38418b26c4cc  ***
   [0:00:00.027]: 20.0 Cel ; 48.7 %RH
   [0:00:02.053]: 19.8 Cel ; 48.7 %RH
   [0:00:04.079]: 20.0 Cel ; 48.7 %RH
   [0:00:06.105]: 19.8 Cel ; 48.7 %RH
   [0:00:08.130]: 20.0 Cel ; 48.8 %RH
   [0:00:10.156]: 20.1 Cel ; 48.8 %RH
   [0:00:12.182]: 19.7 Cel ; 48.7 %RH
   [0:00:14.207]: 20.0 Cel ; 48.8 %RH

<repeats endlessly>