Arduino library to support the HTS221 capacitive digital sensor for relative humidity and temperature
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examples/DISCO_IOT_HTS221_DataLog_Terminal
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README.md
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README.md

HTS221

Arduino library to support the HTS221 capacitive digital sensor for relative humidity and temperature

API

This sensor uses I2C to communicate. It is then required to create a TwoWire interface before accessing to the sensors:

dev_i2c = new TwoWire(I2C2_SDA, I2C2_SCL);
dev_i2c->begin();

An instance can be created and enbaled following the procedure below:

For the humidity sensor:

HumTemp = new HTS221Sensor (dev_i2c);  
HumTemp->Enable();  

The access to the sensor values is done as explained below:

Read humidity and temperature.

HumTemp->GetHumidity(&humidity);  
HumTemp->GetTemperature(&temperature);  

Documentation

You can find the source files at
https://github.com/stm32duino/HTS221

The HTS221 datasheet is available at
http://www.st.com/content/st_com/en/products/mems-and-sensors/humidity-sensors/hts221.html