On Jun 22, 2004, at 4:54 PM, Andrew Warren wrote: > if the key bounces on RELEASE, matching on "11110000" will fail. > If the key bounces on release, it MIGHT fail. Remember he's only sampling ever 10ms. Any key that bounces for less than 10ms shouldn't show any bounce at all. Keys that bounce for more than 10mS might or might not show bouncing, depending on whether the key is "up" when the sample is actually taken. BillW -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.