In SX Microcontrollers, SX/B Compiler and SX-Key Tool, DigitalDj wrote: I probably wouldn't want to go over 5 volts on the pins of the SX which i don't think will be a problem. The bad thing i can think of is rectifying the audio out of the sound card would maybe be ok but filtering it will have an effect on the sound quaility unless i use a audio transformer to isolate the circuit. Bean, Have you ever programmed anything similar to this with the comparitors? Thanks, Kevin ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=149297#m149741 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)