DS18B20 Digital Thermometer with Bluetooth Interface

Updated: Nov 27, 2021

Here to learn Arduino based bluetooth temperature sensor measures the temperature via the DS18B20 integrated digital temperature sensor and makes it available via bluetooth. This creating a kind of remote temperature monitor and temperature reading is transmitted via the Arduino’s serial port to the Arduino bluetooth module. Then the android application receive celsius & fahrenheit temperature reading and displays digital reading and therometer gauge display in mobile screen.

Circuit Diagram: