License

Public Domain

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LASER SECURITY

2 months ago 34
  • Description
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  • BOM
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Description

http://www.miniprojects.co/2019/04/07/laser-security-alarm-circuit/

We need safety and security for our valuable things, to protect our property simple and robust security alarm circuit designed by using commonly available components. We know the LASER (Light Amplification by Stimulated Emission of Radiation) light has high strength-focused light rays, in this project we have used that laser light as a fence. LDR is an Another common Component used to Detect the Laser Light.

Laser security alarm circuit produce highly audible buzzer beep sound when the laser light blocked

Documents

Sheet_1

Layout

BOM

ID Name Designator Footprint Quantity
1 BC548B Q1,Q2 TO-92(TO-92-3) 2
2 100 R1,R2,R3,R4 AXIAL-0.3 4
3 BL-PBZ12065C2705YA BUZZER1 BUZZER-R6.0-2P-6.5PITCH 1
4 LDR U1 LDR 1
5 RED LED1 LED-3MM/2.54 1
6 + P1 HDR-1X2/2.54 1

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