On Sep 15, 2012, at 9:26 AM, Perry Curling-Hope wrote:

> So put the other end of the divider into a processor I/O pin.
> Wake the micro up periodically, switch the I/O pin from highZ  to  'low',
> take the measurment and switch back to highZ.

This would expose the pin to the full battery voltage when it is in high-z =
state, which is probably not  a good idea.  I think you'll need an external=
 switch.

BillW

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