Just discovered this site today and thought the tutorial about your first embedded board was great. In fact I intend to take that breadboard design and expand it to meet an idea I've had recently.
The idea is to mount a dial on the wall that will sent a certain output via the RS232 port based on what's selected. My question is what's the best way to read the value of where the dial is pointing? I've discovered the Membrane Potentiometer which I guess I could try and build something around, but It's not really the dial/knob I had in mind. Plus I guess I'd have to build in some sort of a/d converter to read the voltage/resistance.