A car alarm system prevents our costly cars from being stolen. A typical car alarm system sounds loudly when any one try to steal our car. The most important thing is to draw the attention of the people nearby, during an attempt of theft. If you want to deter your local thief without spending hundreds on a car security alarm? Here you can read about a CAR ALARM SIMULATOR. LED with ‘realistic-appearing’ flash sequence simulates active car alarm system.
Ingeniously simple circuit can tell if your car is running or not by detecting the voltage difference when the car is on and off. This occurs because when your car is running the Alternator puts a out a voltage a little bit higher than when the car is off.
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