How to Make Laser Alaram

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6 years ago
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Hello Friends, in this video i will show you an amazing idea. which is very good for School projects.

Things That i Use:
Bike Buzzer
LDR Sensor
BC 547 Transistor
9V Battery
Laser

That's it for today guys, i hope you like this video thanks for watching and don't forget to Like, Comment Subscribe and Share.

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