This is a digital temperature sensor .
This module features:
1.DS18B20 chip, while leaving 3P hole seat easily accessible DS18B20 chip
2. The chip pins have all been drawn, pull-up resistor
3. On-board power indicator
4. board size: 21 (mm) x10 (mm)
Wiring diagram:
1. VCC external 3.3V-5V voltage (can be directly connected to the 5v or 3.3v microcontroller MCU)
2. GND external GND
3. OUT small board digital output interface
