In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Electronegativity wrote: Thanks Bean. I put the diodes in at an earlier stage when each microcontroller was running off its own power supply. This caused all kinds of strange voltages and the diodes seemed to help a bit. I will remove them and use pulldowns to ground instead. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=125308#m125379 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)