Shadow Alarm using LDR

Ldr Security Alarm Circuit Diagram

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Laser Security Alarm Circuit Diagram using IC 555 and LM358

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LDR Circuit Diagram
LDR Circuit Diagram

Shadow Alarm using LDR
Shadow Alarm using LDR

Electronic Eye Circuit - LDR and IC 4049 for Security Control System
Electronic Eye Circuit - LDR and IC 4049 for Security Control System

Laser Security Alarm Circuit Diagram using IC 555 and LM358
Laser Security Alarm Circuit Diagram using IC 555 and LM358

Make Security Alarm with LDR | LDR Latch Circuit - YouTube
Make Security Alarm with LDR | LDR Latch Circuit - YouTube