Charlieplexing... Gawd I hate that term!

PBP Example provided here almost a year ago...

http://www.picbasic.co.uk/forum/showthread.php?t=3510

Doesn't matter what you find on the internet, we probably did it here on this forum first... Heart Transplants, DNA resequencing, cloning, USB Coffee Warmer (I kid you not, that's one of my hair-brained ideas that actually went to market)...