Calum Scott built GuitarGlitch. He writes:
The GuitarGlitch project is part of a masters portfolio I’m doing for Glasgow University music department. I’m looking at musical applications of physical computing and HCI – in particular the role of physical objects in digital music.The learning curve was quite high on this project as I had close to no electronics experience before starting. The solenoids are all 12v (from rs-online.com) and are connected to an Arduino Duemilanove board (arduino.cc) and the power supplies with a TIP120 transistor circuit similar to this. The leds are on the same pins as the solenoids. The code running on the Arduino is SimpleMessageSystem which is then controlled from Max/Msp. There are also 2 6v dc motors on the headsocks which are from a mechano set and are controlled by a Miditron board (eroktronix.com)..