In SX Microcontrollers, SX/B Compiler and SX-Key Tool, g_daubach wrote: Having one or more diodes in series with the supply line has another advantage too: You protect the device against wrong polarity. This is why I usually put at least one 1N400x in series with the supply input. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=144373#m144729 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)