Quote:
Originally posted by Brian_Lim
Why is having an internal counter unreliable?
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Because various things can affect how far your robot travels in the period of the counter. A fully charged battery will cause a robot to travel significantly faster and thus farther in the same amount of time compared to a somewhat depleted battery. If someone sets bins in front of your robot it will probably slow you down and screw up your timing as well. This is a fundamental problem with dead reckoning. Ask anyone who has participated in FIRST Lego League about these problems and I'm sure they'll have a lot to say about it!