Thread: Encoder as PIDSource
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Unread 24-01-2011, 08:41
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Re: Encoder as PIDSource
Quote:
Originally Posted by jwakeman View Post
Thanks for the help everyone. I put together the subclass that Alexander described and will post it here in case it helps anyone else. It does compile but hasn't been tested in any way. ...
You just described what I want to do this year with our robot. We are also going to use an elevator and we want to use the Distance function of the Encoder for a PIDSource.

I have tried for 2 years to use the PIDSource class to drive our robot a certain distance with the encoders and failed each time. I always run out of time, and I, still after 2 years of beating through the C++ code, do not understand classes completely. I muddle through.

This year me and the students HAVE to figure this out in order for the robot they designed to work correctly, so needless to say, I am very interested in this thread.

How do you use your above PIDEncoder in the robot main code to get the elevator to stop at the correct distance? I see the class and that looks nice but I don't know how to use it. If you want to PM me to keep "spoilers" away that's fine, though honestly I guarantee you there are many students and mentors out there running into the same problems.
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