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There have been 1 items by VaticanUK
(Search limited from 26-November 19)
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??