VCC is the supply pin of the DS18b20 Temperature Sensor that can be connected to 3.3V or 5V of the supply. GND is the ground pin of the DS18b20 Temperature Sensor IC and it should be connected to the ...

IR Sensor Pinout. The IR sensor has a 3-pin connector that interfaces it to the outside world. The connections are as follows: VCC is the power supply pin for the IR sensor which we connect to the 5V ...