In SX Microcontrollers, SX/B Compiler and SX-Key Tool, robotworkshop wrote: Hello, One thing that I don't see in your code is where you define the pin as an output. If it isn't defined as one you won't see any change in the LED. Robert ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=250589#m250593 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)