Er....... I think I see through the mud, thanks Melanie. And to round off I'm using PicBasic Pro + U2 Serial Programmer + MicroCode Studio Plus programming software. Does that tie up with your muddy description?

Just want to say I've used the basics of your Olympic timer interfaced with EDE707 7 segment driver chip + HV drivers into 8 inch outdoor displays + other software for lap counting and it is excellent - many thanks for all you do on this forum - it is appreciated.

Adrian