| .. _sht4x: |
| |
| SHT4X: High Accuracy Digital I2C Humidity Sensor |
| ################################################# |
| |
| Description |
| *********** |
| |
| This sample application periodically reads the ambient temperature and humidity |
| from an SHT4X device. The result is written to the console. |
| |
| The SHT4X sensor has an optional heater that can be useful for specific |
| environments or applications (refer to the datasheet for more information). |
| To utilize the heater, check the Kconfig options for this application. |
| |
| References |
| ********** |
| |
| - `SHT4X sensor <https://sensirion.com/products/catalog/SHT45>`_ |
| |
| Wiring |
| ****** |
| |
| This sample uses the SHT4X sensor controlled via the I2C interface. |
| Connect Supply: **VDD**, **GND** and Interface: **SDA**, **SCL**. |
| The supply voltage can be in the 1.7V to 3.6V range. |
| Depending on the baseboard used, the **SDA** and **SCL** lines may require Pull-Up |
| resistors. |
| |
| Building and Running |
| ******************** |
| |
| This project outputs sensor data to the console. It requires an SHT4X |
| sensor. It should work with any platform featuring an I2C peripheral |
| interface. This example includes a device tree overlay |
| for the :zephyr:board:`blackpill_f411ce` board. |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/sensor/sht4x |
| :board: blackpill_f411ce |
| :goals: build flash |
| |
| Sample Output |
| ============= |
| |
| .. code-block:: console |
| |
| *** Booting Zephyr OS build v2.6.0-rc1-315-g50d8d1187138 *** |
| SHT4X: 23.64 Temp. [C] ; 30.74 RH [%] |
| SHT4X: 23.66 Temp. [C] ; 32.16 RH [%] |
| SHT4X: 23.63 Temp. [C] ; 30.83 RH [%] |
| |
| The datasheet states that the sensor measures temperature and humidity in degrees Celsius |
| and percent relative humidity respectively. |
