Protect your Room with your own Laser Security System!!!
A really easy and cool electronics project and lots of fun to play with once it finished. it has a large application quotient in our everyday life’s! so all you teenagers and mad scientists go out...
View ArticleHow To Make A Laser Security System
This video will show you How To Make A Laser Security System in easy steps. The things you need are : *2n3904 NPN Transistor *5K Variable Resistor *100uF Cap…
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