Building a Line Follower Robot

What is a line follower?

Line follower is a machine that can follow a path. The path can be visible like a black line on a white surface (or vice-versa) or it can be invisible like a magnetic field.

Why build a line follower?

Sensing a line and maneuvering the robot to stay on course, while constantly correcting wrong moves using feedback mechanism forms a simple yet effective closed loop system. As a programmer you get an opportunity to ‘teach’ the robot how to follow the line thus giving it a human-like property of responding to stimuli.

Practical applications of a line follower : Automated cars running on roads with embedded magnets; guidance system for industrial robots moving on shop floor etc.

Prerequisites:

  • Knowledge of basic digital and analog electronics. (A course on Digital Design and Electronic Devices & Circuits would be helpful)
  • C Programming
  • Sheer interest, an innovative brain and perseverance!

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