Design and Development of Motorcycle Security System GPS and SMS Based on ATmega128 Microcontroller

Abstract

This study designed and tested a motorcycle security system based on an ATmega128 microcontroller integrated with a PMB-648 GPS module, Wavecom GSM modem, and relay driver. The system provides an SMS warning when the vehicle is operated outside the predefined security procedure, receives remote commands to switch the vehicle electrical system on or off, and returns vehicle coordinates that can be accessed through Google Maps. Tests were conducted at short and long distances to evaluate SMS communication, response time, GPS positioning, and relay operation. The main SMS commands were successfully executed. In the long-distance test, the response times for turning the vehicle off, turning it on, and requesting the vehicle position were 15 s, 20 s, and 30.9 s, respectively. GPS testing recorded coordinates during movement up to 650 m, while the resulting track followed the actual route closely. The relay driver also successfully performed the intended electrical switching function