PID Control of Line Followers

Abstract

Line Following is one of the most important aspects of robotics. A Line Follower Robot is an autonomous robot which is able to follow either a black or white line that is drawn on the surface consisting of a contrasting color. It is designed to move automatically and follow the made plot line. PID control of line follower is a method consisting of Proportional, Integral & Derivative functions to improve the movement of the robot. The robot uses several sensors to identify the line thus assisting the bot to stay on the track. The robot is driven by DC Motors to control the movement of the wheels. The Atmega Microcontroller will be used to perform and implement PID algorithms to control the speed of the motors steering the robot to travel along the line smoothly. This project aims to implement the PID algorithm and control the movement of the robot by proper tuning of the control parameters and thus achieve better performance. This project has various applications in the field of Medicine, Automation and Space Application.