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Infrared (ir) based security alarm circuit using 555 timer ic & lm358
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Laser Security Alarm Circuit
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Laser Security Alarm Project - YouTube
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Working Explanation of 'Laser Light Security Alarm' Circuit - YouTube
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Laser Security Alarm Circuit Diagram using IC 555 and LM358
![Infrared (IR) Based Security Alarm Circuit using 555 Timer IC & LM358](https://i2.wp.com/circuitdigest.com/sites/default/files/circuitdiagram/IR-security-alarm-circuit.gif)
Infrared (IR) Based Security Alarm Circuit using 555 Timer IC & LM358
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Laser Light Security Alarm | Full DIY Electronics Project