Pir Sensor Light Circuit Diagram. It s quite simple to understand the pinouts and one may easily configure them into a working circuit with the help of the following points. The passive infrared sensor consists of three pins as shown below.
Wiring for lights that can either be off operated by a motion sensor or permanently on. The 12v dc supply required for the whole circuit can be fed from any standard 12v ac mains adaptor battery. Working of the circuit is simple and straight forward.
The image shows a typical pir sensor pinout diagram.
Pin1 pin2 and pin3 are corresponded to drain source and ground terminal of the device. Lighting circuits connecting a pir motion sensor with an override switch. As indicated in the following diagram pin 3 of the sensor should be connected to the ground or the negative rail of the supply. Pin1 pin2 and pin3 are corresponded to drain source and ground terminal of the device.