Quote:
Originally posted by Kai Zhao
I would be interested knowing how one would go about making a counter using the custom circuit board. I thought of a system using a wheel with conductive/non-conductive sectors and having a wire brush sense if it is moving or not.
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How about using the light sensors we have in the kit (unlimited amount) to read light and dark areas printed onto one (or more) of the wheels. Use two of them and you can get direction and tach. A simple calculation of RPM times wheel circumference would get you distance. This is similar to what the rotation sensors in Lego Mindstorms are doing for FLL teams.