In SX Microcontrollers, SX/B Compiler and SX-Key Tool, JonnyMac wrote: Unless you want to connect a standard serial connection to the board you'll end up having stacked level shifters. The USB-to-Serial adapter has a USB chip plus an RS232 level shifter on it. On you're board you'd typically put an RS232 level shifter downstream of the DB-9. So, if you're always going to be using USB you end up with to RS232 level shifter that aren't required. A couple of the devices listed above will take you directly from USB to TTL-level serial. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=271442#m271605 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)