In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: Hmm, I see no reason a BCD switch wouldn't work with the internal pull-ups. If you pull the BCD switch out of the circuit, then do the pins go high ? Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=140402#m140480 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2006 (http://www.dotNetBB.com)