| Summary: | The purpose of making this final project is able to giving a car safety system that is easy to use and reliable. The design of this tool consists of power supplay ,an ATmega 16 microcontroller as data center, keypad 4x4, LCD 2x16, an interface between the modem Wavecom fastract type serial M1306B with a microcontroller using a serial communication MAX232, relay drivers and buzzer .
The working principle of this safety device is when there is someone who wants to turn on the car starter must be inputting secret pin and turn the ignition to position ST, if true the car starter motor active, but it wrong. The safety device will give a warning to the owner through sms, that car in a dangerous situation, system writing a character \"Warning!!! inputting a secret pin is wrong, beware of theft \" and if message failed buzzer active.
The results of this final project shows the security system has been working in line with expectations, after the system send a notification message to owner for action crime of theft , the owner of the car can be quickly toward where the car is placed, for check the conditions the car.
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