How To Make A Laser Light Security Alarm System

How To Make A Laser Light Security Alarm System

In This Video I Am Going To Show You How To Make A Laser Light Security Alarm System.

What You Need To Build This Project

▪BC547 Transistor
▪2.2KΩ Resistor
▪Red LED
▪LDR (Light Dependent Resistor)
▪4V Battery
▪Buzzer
▪SPST Switch
▪Red Laser Light etc.

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Comments

JItendra Kumar says:

Can we use transistor of BC548

Diwa Kar says:

Can we use 9v battery instead of 4v

Pankajजियाके बिज याने क्या Raut says:

And please reply fast

Pankajजियाके बिज याने क्या Raut says:

yah puri video detail se batao

SAMIN SIMRAN says:

Can i use 9v battery?

ojas hedau says:

Can we use S9014 transistor?

Volenath Bhandari SINGH says:

Kitne meter taak kaam karega?

ojas hedau says:

Is it necessary to use BC547 transistor?

Kaushal Kulkarni says:

instead of making 1000 video about mini project provide ckt diagram for all video which was u uses

Bright Army GAMING says:

Can we use bc548 instead??

pandu pandu says:

Say that where can we use this

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