Adafruit AM2320 Sensor Driver for Arduino 
This is a library for the Adafruit AM2320 Temperature & Humidity Unified Sensor
Also supports AM2320 chips (and maybe other compatible chips!)
Check out the links above for our tutorials and wiring diagrams. This chip uses I2C to communicate
Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries. MIT license, all text above must be included in any redistribution