Uses 1-Wire interface- requires only one digital pin for communication
Comes with a resistor module so it is easy to connect on the Arduino board
The DS18B20 Waterproof Digital Temperature Sensor Kit provides 9 to 12-bit (configurable) temperature readings over a 1-Wire interface, so that only one wire (and ground) needs to be connected from a central microprocessor. Compatible with 3.0-5.5V systems.
