A line-following robot uses infrared (IR) sensors to detect a line and steer accordingly. The robot adjusts the speed and direction of its wheels based on sensor input, ensuring it stays on the track.

Line Follower Robot Using Arduino Nano with PID Control This project showcases a compact and efficient line follower robot designed to follow a black line on a white surface using PID ...

His latest project is a sophisticated line follower. You’ve probably seen “bang-bang” line followers that just use a photocell to turn the robot one way or the other.

The robot uses a whopping 32 IR sensors to follow a black line across a concrete workshop floor, adjusting its path using a steering motor salvaged from a power wheelchair.