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:

TwoWire dev_i2c(I2C_SDA, I2C_SCL);
dev_i2c.begin();

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

For the humidity sensor:

HTS221Sensor HumTemp(&dev_i2c);
HumTemp.begin();
HumTemp.Enable();

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

Read humidity and temperature.

float humidity;
float temperature;
HumTemp.GetHumidity(&humidity);
HumTemp.GetTemperature(&temperature);

Documentation

The hosted API documentation is available at stm32duino.github.io/HTS221.

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