Digital temperature sensor - DS18B20 from Dallas Semiconductor.
- Usable temperature range: -55°C to 125°C
- Accuracy: ±0.5°C (from -10°C to +85°C)
- Uses 1-Wire interface. Requires only one digital pin for communication
- Unique 64 bit ID burned into chip
- Multiple sensors can share one pin
- Query time is less than 750ms
- Usable with 3.0V to 5.5V power/data