2018-11-21 03:52:37 +08:00
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.. _sht3xd:
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SHT3XD: High accuracy digital I2C humidity sensor
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#################################################
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Description
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***********
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This sample application periodically (2 Hz) measures the ambient
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temperature and humidity. The result is written to the console.
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Optionally, it also shows how to use the upper threshold triggers.
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References
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**********
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- `SHT3X-DIS sensor <https://www.sensirion.com/en/environmental-sensors/humidity-sensors/digital-humidity-sensors-for-various-applications/>`_
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Wiring
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*******
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This sample uses the SHT3X_DIS sensor controlled using the I2C interface.
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Connect Supply: **VDD**, **GND** and Interface: **SDA**, **SCL**
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and optionally connect the **ALERT** to a interrupt capable GPIO.
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The supply voltage can be in the 2.15V to 5.5V range.
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Depending on the baseboard used, the **SDA** and **SCL** lines require Pull-Up
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resistors.
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Building and Running
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********************
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This project outputs sensor data to the console. It requires a SHT3XD
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sensor. It should work with any platform featuring a I2C peripheral
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interface. It does not work on QEMU. In this example below the
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:ref:`nrf51_ble400` board is used.
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.. zephyr-app-commands::
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2019-10-08 01:12:11 +08:00
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:zephyr-app: samples/sensor/sht3xd
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2018-11-21 03:52:37 +08:00
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:board: nrf51_ble400
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:goals: build flash
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Sample Output
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=============
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.. code-block:: console
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SHT3XD: 19.64 Cel ; 41.96 %RH
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SHT3XD: 19.74 Cel ; 42.06 %RH
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SHT3XD: 19.75 Cel ; 42.08 %RH
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<repeats endlessly>
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