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Re: Low Res Optical Encoders for Speed Control
Our team used a optical sensor with a 1ms response time, and had that going through a flywheel that had 3 holes. At 5000 rpms, that required about a 2ms response time, and it always worked. I know that other teams (341 in particular) used the retroreflective sensors from last years KOP, which worked as well.
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All statements made are my own and not the feelings of any of my affiliated teams.
Teams 1510 and 2898 - Student 2010-2012
Team 4488 - Mentor 2013-2016
Co-developer of RobotDotNet, a .NET port of the WPILib.
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What I would really love to see is having the teams try to solve a problem that is real scientists are trying to solve right now. Wouldn't it be cool if a team came up with a robot design that could solve one of the world's worst problems? Talk about FIRST publicity! - Beth Sweet [more] 
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