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I already discussed this in the Arduino DS18B20 Tutorial. The following image shows the Pin Diagram and the table next shows the pin description of DS18B20. Pin Diagram and Pin Description of DS18B20

Since the DS18B20 is a Digital Temperature Sensor, the temperature data is stored in the on-chip EEPROM. If you are not familiar with 1-Wire bus, it is a communication bus developed by Dallas Semiconductor, and as the name suggests, it requires only one wire to communicate with a Processor (well, 1 Data Line and 1 GND Wire).Īdditionally, the DS18B20 Temperature Sensor can derive its power from the data wire itself (known as Parasite Power), without the need for providing any external power (through the V DD Pin).

Unlike other digital sensors, which often communicate over I 2C or SPI, the DS18B20 Temperature Sensor uses 1-Wire Communication to interact with a Microcontroller. DS18B20 is a digital Temperature Sensor from Maxim Integrated, which can measure temperatures in the range of -55 0C to +125 0C. We already used DS18B20 Temperature Sensor in a couple of earlier projects involving Arduino, Raspberry Pi and ESP8266.

Displaying Temperature on Serial MonitorĪ Brief Note on DS18B20 Temperature Sensor.Pin Diagram and Pin Description of DS18B20.A Brief Note on DS18B20 Temperature Sensor.