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Originally Posted by Nitroxextreme
I'm looking for some kind of sensor that can measure speed/velocity of a moving wheel. I considered encoders/gear teeth sensors but I'm out of interrupts.
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There are six general I/O pins on the Robot Controller which can cause interrupts. We used three encoders on our robot last year, and I know exactly how to modify the interrupt code to handle more. Just how many interrupting devices are you using, anyway?