Parallel Resistance Issues for a Microcntroller

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piclearner

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Hi,

I need to sense 3 different potentiometers using a microcontroller. The potentiometers are connected same 3.3.v. When we rotate one potentiometer, it is effect rest of two. The potentiometers are not working independently, since it is act as parallel resistance. So how can we solve this issue. I need to work these potentiometers independently.

Thank You,

Piclearner
 

We need to see your schematic.

If you have the potentiometer tracks (the ends) at ground and 3.3V and the 3.3V is stable, you should get 3 independently adjustable voltages out at their wipers.
Are you saying the voltages really do change (as measured on a voltmeter) or that the microcontroller senses interaction between them that isn't really there?

Brian.
 

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