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#8391 Basic Analog Input Circuit and Program

Posted by VaticanUK on 25 January 2011 - 02:29 PM in General Discussion

Hi Bill. In your diagram, the input can never be 0 because R2 would always have a voltage applied to it meaning that the input at A5 would always be raised above 0. Wouldn't the attached be better since this would give you a full range of inputs from 0 to 3.3v. Unless I'm missing something? Maybe you can damage the netduino if you apply 0v to the inputs or something??

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