In SX Microcontrollers, SX/B Compiler and SX-Key Tool, mghodge wrote: If you're not making ANY changes to the circuit and just switching from a 9v batt into the vreg, to a 12v source. Then something must be wrong with the 12v power supply. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=435144#m435461 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2010 (http://www.dotNetBB.com)