> I recall hearing somewhere that you can actually use the PIC usart > levels with the PC without a converter. That would be remarkable, because it's not just the voltage level but also the *polarity* that is different. 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