You can easily make laser security system. To make this system I am using LDR (light dependent resistor), one Laser, 5 volt Relay, Variable resistor, 1.6k resistor and one siren light.
Video demo:
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How to make laser security system at home
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45 Sensor Kit for DIY project
can you please send me the circuit diagram of this video???
thanks
It’s nice! Is it for sale?
Can you please send me a circuit
Can you please send me a circuit…
Give me the ckt diagram of this project
Sir circuit diagram please