i seem to be confused (not something new)
must have posted in wrong spot trying to use a ds1821
with a 877a and a osc of 20 did a search of this temp sensor
and there were a couple of examples tried them and one show no ds1820
the other gives poor reading 96 deg c or something else
am using a 4.7k res to vss
any help
sorry about the misplaced posting