In planning stage. MCU: Tiny2313 or 461. -A few buttons for controlling the PC's mediaplayer. -Volume control, a variable resistor to an A/D-input. -LCD which shows songinfo. 100420: -First step completed. I now have a Tiny461 with a potentiometer connected to the computer. I also have created a daemon which talks to the Tiny and sets the systems master volume according to the potentiometer wiper position. So I turn the pot, and the computer's volume changes. Pretty cool :)