How to make a Laser Light Security Alarm

Download War Robots 6v6 PvP game and get AWESOME Starter Pack! http://bit.ly/2GnvbiG In this tutorial I will show you how to make your own "Laser Security Alarm System" or a "Laser Sensor" Congrats! Your "Laser Security Have you ever thought about implementing your own home security alarm systems? It’s one of the simplest and interesting circuits for electronic beginners. Our new home security equipment uses a LDR (Light Depended Resistor) to detect security problems. Theft attempt and other security thre

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