>Why start in the *hard* end. The 18-series are easier to use... For many reasons. Among them, the web resources come out to be the top. Anyone ever notice that most of the application notes from Microchip is related to 16 series. Furthermore I can find many of tutorials writen by some expert for 16 series compare to 18 series. Please correct me if I am wrong. That is the reason when I was going to start PIC, I choose 16F874/877 series. WH Tan -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body