In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: The schematic looks okay to me. How much current (amps) does the solenoid use when connected directly ? You need to choose a power transistor that can easily handle that amount of current. Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=317938#m317945 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2009 (http://www.dotNetBB.com)