Ok, i know this is kind of a longshot, but i'll go ahead and ask... I want to try to rig up something so that my computer can read from 1 or more variable resistors (like a volume switch on a radio) through an USB or serial cable. I am clueless about 2 things... Mostly, how do i get the computer to look through the serial or usb and read the current going through the variable resistor. The second is problably more for a electronics forum (lol) but while i'm at it, does anyone have any ideas or experience on making home-made hardware devices for computers to read from. Well, thanx for your help...