In SX Microcontrollers, SX/B Compiler and SX-Key Tool, OzStamp wrote: Hi If your just flashing a led why not a pushbutton + resistor + flashing led all in series led that flashes by itself.. |\ +----- PushB -----[ resistor]-------| ||---- - |/ Or a 555 timer astable with a reset button wired to pin 4 Ronald Nollet ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=204267#m204909 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2007 (http://www.dotNetBB.com)