No. of days:
5 per team
Sensor based line follower robots are autonomous robots which can follow a marked path. This is a basic robot which is very helpful in learning the concepts involved behind embedded systems and interfacing.
Some of the earliest Automated Guided Vehicles (AGVs) were line following mobile robots. They might follow a visual line painted or embedded in the floor or ceiling or an electrical wire in the floor. Most of these robots operated a simple "keep the line in the center sensor" algorithm. They could not circumnavigate obstacles; they just stopped and waited when something blocked their path. Many examples of such vehicles are still sold, by Transbotics, FMC, Egemin, HK Systems and many other companies.