Automatic Turn Signal for Motor Vehicles using Road Navigation Application

Abstract

One of the causes of the traffic accidents is drivers making sudden and unexpected turns and failing to use their turn signals correctly. This “Automatic Turn Signal for Motor Vehicles using Road Navigation Application” aims to create a device that connects to a road navigation application and automatically activates turn signals of a motor vehicle. The system is designed to control the vehicle’s turn signal lights by detecting the need of turning and assist the user in navigating to the desired location using the directions generated from Google Maps API. This study employed Developmental Quantitative research and Iterative Waterfall method in its development. A control box is installed to a motor vehicle which contains Atmega328P as its main controller, a relay to switch the turn signal lights and a HC-05 module to communicate with the mobile app through Bluetooth technology. System Testing was done to ensure that the device is working according to specification, the following were tested: unit testing, communication with the API, turn point detection, communication between hardware and software modules. The results show that the mobile app, control box and the API were successfully integrated.