In this tutorial I will show you how to make your own "Laser Security Alarm System" or a "Laser Sensor" on breadboard. This is similar to my previous video "Dark Sensor."

Its awesome once you complete the circuit and fun to play with. You can make this Laser Tripwire Alarm and protect your room from intruders :D You can even add multiple mirrors from different angles and focus it on the LDR for a greater effect.

COMPONENTS REQUIRED:- LDR, L.E.D, BC547 Transistor, 100k ohm resistor, 9v Battery, Buzzer & Breadboard.

How to make a "Light Sensor" on Breadboard :- [ Ссылка ]

How to make a "Dark Sensor" on Breadboard :- [ Ссылка ]

How to make a "Water Level Indicator" on Breadboard :- [ Ссылка ]

How to make an "Infrared Circuit" on Breadboard :- [ Ссылка ]

How to Adjust the Brightness of a L.E.D :- [ Ссылка ]

How to Adjust the Volume of a Buzzer :- [ Ссылка ]

How to Adjust the Speed of a Fan(DC Motor) :- [ Ссылка ]

How to make a "Reed Switch Circuit" on Breadboard :- [ Ссылка ]

How to make an "Electronic Dice" on Breadboard :- [ Ссылка ]

How to make a "Touch Sensor" using 555 Timer IC on Breadboard :- [ Ссылка ]

How to make a "Remote Tester Circuit" on Breadboard :- [ Ссылка ]

Touch 'on'/Touch 'off' L.E.D on Breadboard :- [ Ссылка ]

How to make a Simple Dark Sensor? :- [ Ссылка ]

How to make an "Electronic Wire Loop Game" on a Breadboard :- [ Ссылка ]

How to make a PIR MOTION SENSOR/DETECTOR on a Breadboard (HD) :- [ Ссылка ]

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Have a great day! ✌

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