The workings of a line follower robot are pretty straight forward.
These robots have the capability to detect a black/dark line
on a lighter surface depending on the contrast.
They estimate whether the line underneath them is shifting
towards their left/right as they move over them. Based on that
estimation, they give respective signals to the
motors to turn left/right so as to maintain a steady center with
respect to the line.
These robots usually use an array of IR (Infrared) sensors
in order to calculate the reluctance of the surface beneath them.
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Title: Motivational Background Music for videos
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