Pir Motion Sensor Alarm Circuit Diagram. Pin 1 is vcc which is connected positive 5v supply. For example 12v battery or ac adapter.
When any person animal or any object comes in the range of the sensor. 12v dc power supply at more 1a. In this circuit pir passive infrared motion sensor is used which is used as a motion detector.
Infrared pir human motion sensor detector modules.
Pin 1 is vcc which is connected positive 5v supply. A pir motion sensor alarm is a device which detects the infrared radiation from a moving human body and triggers an an audible alarm. Universal pcb and more parts. Go through the given diagram of the pir sensor to understand its pin outs and arrangement in the circuit.
