Arduino Laser Security System Project | LDR + Buzzer Alarm | DIY Anti-Theft System
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YouTubeA to Z Macatronics
Arduino Laser Security System Project | LDR + Buzzer Alarm | DIY Anti-Theft System
In this video, I built a DIY Arduino Laser Security System using LDR sensor, laser module, buzzer and LED. When the laser beam is blocked, the alarm starts buzzing and LED blinks — perfect for security, anti-theft and science projects. This project is great for: School science fair Beginners learning Arduino Home security ideas DIY ...
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