Hi John, Tuesday, September 2, 2003, 9:05:37 PM, you wrote: JF> When you say "monitor speed" just what do you want to know? All I can think JF> of is too fast, too slow, stopped or "erratic". Each condition needs a JF> definition. >> Hi all, >> >> I am a hobbyist who is trying to help a friend with a project. He >> wants to monitor the speed of about a dozen shafts on his potato >> digger. The shafts normally run around 200 rpm, but each shaft may I should have said display the shaft RPM's rather than monitor their speed. The display part should be easy, I hope, anyway. The Amulet LCD accepts serial data and stores each screen as a web page. Actually, as I mentioned to Olin, we do want to sound an alarm if a the shaft goes out of its accepted range - and so far we have in mind a simple percentage - probably 20% above or below normal. -- Best regards, Patrick Murphy James Valley Colony -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu