# Sensirion SHT20/SHT21/SHT25 Humidity and Temperature Sensors

## About
This is a test application for the SHT2x humidity/temperature sensor
driver.

## Usage
This test application will initialize the SHT2x sensor with the following
parameters:
    - default device type: SHT21
    - 14-bit temperature resolution
    - 12-bit humidity resolution

To change these parameters, you can override them by setting their
corresponding defines in your build environment, e.g.
```bash
CFLAGS=-DSHT2X_PARAM_RESOLUTION=SHT2x_RES_8_12BIT make ...
```
See `drivers/sht2x_params.h` for the default configuration.

After initialization, the sensor reads the temperature and humidity values
every one second and prints them to STDOUT. The chip-heater of the SHT2x
will be turned on in the beginning, so the temperature should rise over
time and the humidity should decrease.