Simulation and Construction of Fingerprint Vehicle Starter System Using Microcontroller

The rising number of vehicle thefts is becoming an issue particularly in Nigeria where the security system is porous. Vehicle security system has become very important and vital in providing personal security for our cars. In this study, simulation and construction of a fingerprint vehicle starter system was carried out using Arduino Uno ATmega328 microcontroller. The circuit was simulated using Proteus ver8.0 via Arduino compiler programming language using embedded C language. The stages of the circuit consisting of regulated power supply, fingerprint module, microcontroller, LCD, motor output driver, and buzzer unit. The hardware prototype of the circuit was constructed on a PCB board and performance evaluated test was carried out with 150 trials in 5 stages, with 4 authorized users and 1 unauthorized user. The specificity, sensitivity and accuracy of the device was calculated. Results shows that, the sensitivity, specificity and accuracy were 96%, 97% and 97%. This implies that finger print vehicle detector will correctly accept and give access to 96% authorized users, correctly deny 97% unauthorized users, but will fail to accept 4% authorized users, and give access to 3% unauthorized users. Also, vehicle starting using the constructed device is only successful for authenticated users and we are 97% sure. Evaluation carried out under the measured performance metrics were able to be compared and analyze distribution scores of both authorized and unauthorized users with satisfactory result. The device can be recommended for vehicle security and other similar operations.