> http://www.maxim-ic.com/appnotes.cfm/appnote_number/1110 That's the kind of thing. Utility modules are handy, just like s/w library routines. For example, a small PCB with a MAX232 + caps + DB9 and a connector (eg 8 pin DIP socket) on a short lead that can be plugged into a breadboard. Other examples include a PIC + LCD with a 4-way connector (5V, 0V, clock, data), 4081s + LEDs to monitor port pins etc _______________________________________________ http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist