DS18B20 is a digital temperature sensor with a built in 12bit ADC. It can be easily connected to the Arduino. Sensors communicate over a one-wire bus with virtually no additional components.
18b20 sensors have a quoted accuracy of +/-0.5 deg C in the range -10 deg C to +85 deg C. Multiple sensors can be connected to the same data bus. Each sensor can identify itself with a unique serial number.
DS18B20 temperature sensor can work well in normal or parasite mode. In normal mode, 3-wire connection is needed. In parasite mode, Only need 2-wire, The sensor can receive power from the data line.
In normal mode, each sensor is connected between power line and ground, the data output connects to third line, and requires a 4.7K pull-up resistor.We recommend using normal mode when there are many devices running.
Parasite mode requires both DS18B20 GND and VDD to be connected to ground. The DQ pin is the data/power line. The data line requires a 4.7K pull-up resistor.
- Homepage: https://www.amazon.com/dp/B07STT9H74
- Project Type: Personal Use
Manager: Park Mr.Liu