Em 1/3/2011 11:45, alan smith escreveu:
> Using a 470K resistor in series, it pulls 7.3uA. Since I do have a few sp=
are pins, I will take the idea of using one of the digital pins and drive i=
t low to enable, then take the reading with the A/D. =20
>
> Thanks for the help!

You don't need an A/D at all. With the appropriate pull up/down
resistor, any digital input may be used.

Isaac

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