In SX Microcontrollers, SX/B Compiler and SX-Key Tool, jdemeyer wrote: I had another thought after reviewing the 555 trigger with a scope. It seems that the cycle of SLEEP and power on is triggering the 555 oddly. Could it be that the default state of the ports affects the timer differently at the lower voltage? Joe ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=266190#m266348 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)