> Hi Jinx, > Can't help you with the code but couldn't you lose the > opto for the RS232 output? Yes, probably. Apart from recently updating the asm to be more MPLAB-friendly, that project is a distant memory. It did the job at the time and I've had no real reason to review it. I'll add your suggestion to the diagram though, thanks -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.