In SX Microcontrollers, SX/B Compiler and SX-Key Tool, PJ Allen wrote: Describe the failure you're encountering. I know that 3V3 is "in range", but I'd stay with 5V for the present. At any rate, verify it with a voltmeter. Use the circuit depicted in the datasheet and double-check your wiring, then check it again. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=383406#m383413 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2009 (http://www.dotNetBB.com)