This is an AVR library for SHT21, HTU21D & Si70xx Digital Humidity and Temperature Sensor
This fork has been created to support AVR devices with USI interface.
Supports all sensors features:
- read humidity for SHT21, HTU21D or compensated humidity for Si70xx**
- calculate compensated humidity for SHT21, HTU21D**
- read temperature for SHT21, HTU21D, Si70xx or retrive temperature value after RH measurement for Si70xx**
- soft reset
- check battery status
- turn ON/OFF build-in Heater
- read FW version**
- read sensor ID**
To use this library one additional library have to be included: USIWire library: https://github.com/puuu/USIWire
Tested on:
- ATtiny85
**Library returns 255, if there is a CRC8 mismatch or a communication error has occurred