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Unread 21-01-2007, 02:43
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Re: Potentiometer PID

Quote:
Originally Posted by Don Rotolo View Post
We had some awful results 2 years ago with 100k pots on the robot. Last year we used 5k pots on the robot and had great success. I attibute the difference to noise and a close match to the input impedance of the ADC circuit.

Am I crazy?

Don
You aren't crazy. Those ADC inputs on the RC are rated for not much more than 2.5K. You should use a 1 or 2K pot when connecting to the RC. For the OI you'll need a 100K pot.

Bourns makes the "good stuff." Avoid radioshack's potentiometers .
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