Well, that was part of the original post in some ways. Buffering would allow at least some clean redrive of the signal, maybe thats not even necessary, thus getting the collective wisdom to comment. Wouter van Ooijen wrote:> why? just to buffer it into the PIC. Although the resistor > will be within inches of the PIC But why 'buffer' it into the PIC? what would be the benefit over a straight connection (with some protection and/or filtering, but that will be required anyway)? Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products docent Hogeschool van Utrecht: www.voti.nl/hvu -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click. --------------------------------- Yahoo! FareChase - Search multiple travel sites in one click. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist