Motion Activated Lights Using PIR Sensor

by Ur Circuits Hub in Circuits > Electronics

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Motion Activated Lights Using PIR Sensor

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Hey guys, the objective of this project is to save electricity and make it easier for people to switch ON/OFF lights, as this circuit does it automatically with the help of Passive Infrared(PIR) Sensor.

The sensor detects movement within a range of 7m and triggers the relay which switches the bulb ON for a specified amount of time.

The complete step by step tutorial, at YouTube

Supplies

1. Screwdriver

2. Pliers

3.Scissors

4. Breadboard

5. PIR Motion Sensor

6. Incandescent Bulb

7. BC557 (NPN Transistor)

8. 5V Relay

9. 1KΩ Resistor

10. Jumper Wire

11. Heat Shrink Sleeve/ Electrical Insulation Tape

Circuit

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This is the circuit diagram for the same project!

The complete step by step tutorial, at Youtube.