zephyr

History

Radoslaw Koppel d1a93c1426 drivers: sensor: Const sensor trigger data in trigger handler This commit adds const modifier in second argument for sensor trigger handler. There is no reason to modify this data and this change would allow to store trigger configuration also in FLASH. Fixes: #38929 Signed-off-by: Radoslaw Koppel <radoslaw.koppel@nordicsemi.no>		2021-10-27 15:09:35 -04:00
..
boards
src	drivers: sensor: Const sensor trigger data in trigger handler	2021-10-27 15:09:35 -04:00
CMakeLists.txt	cmake: increase minimal required version to 3.20.0	2021-08-20 09:47:34 +02:00
prj.conf	samples: add FP formatting to all samples that require it	2020-11-17 14:44:59 -06:00
README.rst
sample.yaml
trigger.conf

README.rst

.. _sht3xd:

SHT3XD: High accuracy digital I2C humidity sensor
#################################################

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

This sample application periodically (2 Hz) measures the ambient
temperature and humidity. The result is written to the console.
Optionally, it also shows how to use the upper threshold triggers.

References
**********

 - `SHT3X-DIS sensor <https://www.sensirion.com/en/environmental-sensors/humidity-sensors/digital-humidity-sensors-for-various-applications/>`_

Wiring
*******

This sample uses the SHT3X_DIS sensor controlled using the I2C interface.
Connect Supply: **VDD**, **GND** and Interface: **SDA**, **SCL**
and optionally connect the **ALERT** to a interrupt capable GPIO.
The supply voltage can be in the 2.15V to 5.5V range.
Depending on the baseboard used, the **SDA** and **SCL** lines require Pull-Up
resistors.

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

This project outputs sensor data to the console. It requires a SHT3XD
sensor. It should work with any platform featuring a I2C peripheral
interface.  It does not work on QEMU.  In this example below the
:ref:`nrf51_ble400` board is used.


.. zephyr-app-commands::
   :zephyr-app: samples/sensor/sht3xd
   :board: nrf51_ble400
   :goals: build flash

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

.. code-block:: console

   SHT3XD: 19.64 Cel ; 41.96 %RH
   SHT3XD: 19.74 Cel ; 42.06 %RH
   SHT3XD: 19.75 Cel ; 42.08 %RH

<repeats endlessly>