At first glance it appeared as though you thought those were analog sensors, I see what you are trying to do. Here is a link to the datasheet. I believe you need to set up a pic to measure using A/D converters and output binary (serial) like
DS18B20 does. Sounds like a school project. You might even swap the pots for thermisters and really emulate a DS18B20.


http://www.maxim-ic.com/getds.cfm?qv_pk=2812