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25 lines
861 B
Markdown
25 lines
861 B
Markdown
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# Sensirion SHT20/SHT21/SHT25 Humidity and Temperature Sensors
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## About
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This is a test application for the SHT2x humidity/temperature sensor
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driver.
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## Usage
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This test application will initialize the SHT2x sensor with the following
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parameters:
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- default device type: SHT21
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- 14-bit temperature resolution
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- 12-bit humidity resolution
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To change these parameters, you can override them by setting their
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corresponding defines in your build environment, e.g.
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```bash
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CFLAGS=-DSHT2X_PARAM_RESOLUTION=SHT2x_RES_8_12BIT make ...
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```
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See `drivers/sht2x_params.h` for the default configuration.
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After initialization, the sensor reads the temperature and humidity values
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every one second and prints them to STDOUT. The chip-heater of the SHT2x
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will be turned on in the beginning, so the temperature should rise over
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time and the humidity should decrease.
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