Intel® Edison is Intel's new tiny wonder, featuring i.a. a dual-core Intel® Atom™ processor System on a Chip, 1GB RAM, WiFi, Bluetooth LE which enables you to run a real operating system (linux!) on it and do whatever you can imagine.
Things get even better with the Intel® Edison Arduino Board: If you have already some experience with the Arduino platform, you can upload your Arduino sketches through the Arduino Edison IDE and run them exactly like you would do on the Arduino. The added benefit is that, since your Arduino sketches run as a process in a linux system on your Edison, you can also benefit from all the extra goodies of your Edison (Wireless? Check! Bluetooth? Check! Http server? Check!).
In this instructable, you can build an Intel Edison based sonar theremin! Before you get too excited, let's admit that neither the circuit, nor the sound produced has anything to do with the original theremin :-) http://en.wikipedia.org/wiki/Theremin
Our theremin uses an ultrasonic ranging module to determine the note played by a buzzer. The volume is fixed (and deafening) Moreover, the original theremin plays a continuous spectrum of frequencies, our theremin plays a fixed set of notes (which you can set to dodecaphony, Do major, pentatonic, or a note-set of your choice!)
I am thankful to Instructables and Intel for providing me the Intel® Edison Arduino Board used in this project (I was one of the 250 lucky ones!)