Laser Security System
It is simple laser security system using LDRVideo linklets start ---- You need to make Bread board or vero boardtransistor - cl 100 or bc 548bLDRresistor- 1K,10KLED BuzzerBattery ( I use my old mobile phone battery 3.7v)A laser pointer Making circuit make circuit as per diagramon bread board o...By: Technoreview85
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