Line Following Robot build guide
Assembly order, sensor height, and a simple PID-free control loop.
BEGINNER
Assemble the chassis and mount motors so both wheels sit flat on the track.
Mount the IR array 2–5 mm above the surface, centered under the front of the robot.
Flash a sketch that steers left/right based on which sensors see the line.
Tune speed on a practice track before competition — slower is more reliable at first.