John Miskimins wrote:
>
>         I have used a number of different resistor values of about that range
 and
> it seems to work quite well.  When doing this you are counting on the PIC's
> input protection diodes.  As I recall there is a Microchip application note
> that goes into this sort of thing in some depth.  In their application they
> are using it for a line voltage (read wall outlet) frequency measurements
> (I think that was the pourpose).

TO MEASURE THE LINE VOLTAGE BUT EITHER SHOULD BE POSIBLE PROVIDING THE
OTHER DOES NOT VARY
--
Peter Cousens
email: peter@cousens.her.forthnet.gr
snailmail: Peter Cousens, karteros, Heraklion, Crete, 75100, Greece,