I've been working on a new radio stack controller using Arduino and Link2fs. I know that it's not a match for anything real that you would find in a plane, but it looked like a cool toy to play with. If someone wanted a way to build a radio stack, with no switches, encoders, etc. this would be a good candidate. It's just the Arduino Mega 2560, the LCD and matching shield. The display is much, much better than the video shows, in person it's awesome! This is my first draft at tis project, lots more to do.
The sketch can be modified very easily to include an autopilot, or just about any other function. I am also working on ILS and PFD functions. The LCD touchscreen is from Sainsmart, bought on Ebay.