> > example of I/O expansion and possibly a discussion point
>   
> It is always good to discuss alternative methods for doing things. Your
> method is better suitable where the inputs are not keys (no dry
> contact), or the signals cannot be strobed or they can only pull high.

Toggle switches for example, or signals + analogue mux

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist