At 21.43 14-03-1997 -0600, you wrote:
>sometime i wonder how much trouble one will ge through to save a buck.
>i'd say just use LM34 temperature to voltage cost $1.25 USD and the
>a/d and uart build into the pic16c74. i did a project like this that
>displays all eight readings and controls relays and even changes setpoints
>by reading switch contact inputs. it was lots of fun and done only with
>the software simulator DOS version cause it works best.
>
>michael
>
>
I fully agree to the above, and I will add that by using NTC's you would
probably have to calibrate all 8 individually to get the required accuracy,
because they are usually not linear nor accurate to the degree you want.

Michael