Hi I have some pic to pic communication I have to do, does anyone know if there is a summary of these two protocols that would help me to determine which of the two I should use. The communications doesn't have to be fast and is only between 2 pics so I really just want to use the simplest protocol to implement, I'll also be using the UART so hopefully there won't be any conflicts. Thanks, Jim -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist