Re: Opitical Mouse for tracking robotic movement

Brendan Gillatt <brendan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
But instead
of using it to track ground movement, they used it to track the wheel
movement as a cheap shaft encoder. The wheel was large enough that
they simply placed a *** of paper against the wheel and mounted the
mouse against the wheel looking at the paper (if I am remembering
correctly)).

I would've thought that the scroll wheel encoder would be easier to use
(that's what they're made for aren't they?)

The above project used a standard PC board running Linux which means it
already had support for a standard mouse. It was probably easier for them
to use that than to interface some type of encoder.

But sure, in general, shaft encoders are easy and cheap to build and would
probably be more accurate than the mouse.

--
Curt Welch http://CurtWelch.Com/
curt@xxxxxxxx http://NewsReader.Com/
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