To make use of the Elektor board I'd go for the 628 as it is pin= compatible with the 84 plus has the comparators and hardware= USART. Personally I'd use one of the 876/7 for prototyping and then go= down to whatever PIC is needed from that code. I have a feeling the= new 18 series might be the way to go, I'm just about to start= investigating them. Colin -- cdb, bodgy1@optusnet.com.au on 07/09/2002 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.