How to make a Laser Security Alarm || Laser security system || घरपे बनाइयेmआसानी से होम सिक्योरिटी🛡️
Besically In this video I will Show you how to make a laser security system using bc547 transistor, and a ldr... very easily. I hope all of my Friends enjoy this video. For any quiry contact us by mail:- [email protected]
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Circuit diagram- https://drive.google.com/file/d/1gtXf...
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