In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Chris Savage wrote: The SX-Key needs exactly 5V and sufficient current to operate. As for the thread you looked at, please note that I had issues originally without the SX-Key Ring plugged in. This was due to capacitance issues. I had to shorten the wires to get it to work. The power system you have seems like a suspect as well. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=186701#m186995 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)