Hi, Helios ( The sun ... wow !!! )

Try to use RCTime instead of POT, to measure a voltage ... there are applications on the Web.

BUT you'll have to use a Lookup table ... as response to voltage give an exponential law.
also ... no measure below 1.5v !!!

See µChip DS 40040B

See Nuts and Volts Vol1 p 133 ( Parallax site ) : The real way of POT working !!!

see also : http://www.emesystems.com/BS2rct.htm

MY Thought ... if you see how simple it is to use an ADC ( PIC or outside ) ... the soft programming work with POT orRCTime looks like using a hammer and chisel to program the Chip !!!

Alain