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IR Security Alarm System



Breadboard- 1 pc, 9 V battery- 2 pc, IR LED 5mm Transmitter- 1 pc, Photodiode (receiver) -1 pc, Resistor: 330 Ω- 1 pc, 10k Ω -1 pc, Relay 12 V -1 pc, Transistor 547B-1, Buzzer-1 pc, Jumper Wires  


 
Complete Tutorial