The AIRduino Guitar is a wearable virtual guitar that is “played” with two hands much like playing Air Guitar. The system consists of a “stick” that triggers sound, a glove that sets the tone and an Arduino of course. Using ultra sonic sensors to measure the distance between the hands, the distance of the string to glove changes the tone from low (far) to high (close). An accelerometer is used to trigger sound. The AIRduino Guitar was developed by David Fournier, Jean-Louis Giordano, Monireh Sanaei, Maziar Shelbaf and Gustav Sohtell as part of a physical computing course at Chalmers Tekniska Högskola. The exciting part is that you can build your own AIRduino Guitar with this wonderful tutorial on Instructables.