Motion Activated Lights Using PIR Sensor
by Ur Circuits Hub in Circuits > Electronics
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Motion Activated Lights Using PIR Sensor
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
This is the circuit diagram for the same project!
The complete step by step tutorial, at Youtube.