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Re: Help with motion detector
Depending on the distance you have to measure and the clearances involved, you could do this mechanically using a rod with a ball on the end, a spring, and a linear potentiometer. Less likely to be finicky about carpet color, more likely to dislike bumps and ledges underneath your robot.
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The difficult we do today; the impossible we do tomorrow. Miracles by appointment only.
Lone Star Regional Troubleshooter
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