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Best line following algorithm?

Asked by haegenschlatt (122points) November 2nd, 2009

This has become a recent geek’s obsession of mine and I cannot get it out of my head. I am trying to build a robot (admittedly, out of LEGO Mindstorms) that will follow a black line in two directions with one color sensor. Could someone please present me with an algorithm (in plain English) that would let this work?

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