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Originally Posted by Alan Anderson
At the other end of the precision scale, last year's TechnoKat robot used six black stripes on the wheel hubs with Banner sensors to measure wheel rotation.
To measure the speed, you just use the difference in position between two measurements at different times.
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On your last year's robot you used it to see how far to go and then turn or something for the autonomous mode? We tried that and found that it wasn't as accurate as the line following.
So to find the speed, one would have two encoders at different times and subtract them?