> A PIC16F84 > is a simple, cheap and small (in size) PIC and sufficient for > a lot of applications. But it is *not* cheap, is is ridiculously expensive! A 16F628, 16F628A and 16F648A all cost less, and a 16F630 much less. Even a 16F636, 16F818 and 16F819 (all with A/D) cost less! Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.