In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Steel wrote: A PC USB Port will only provide 500mA of current (a bus-powered hub only 100mA). If you are under that, then go ahead. Else, Get batteries or a wall wart. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=196187#m196508 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)