First running complete circuit - similar to that of Little - scale on Blog Spot. I should also mention that the film was filmed by Dave on a camera phone, so apologies for the sound and video quality. I think you can also hear the Wii Brain Teaser in the back ground. This is actually the second version because we had massive problems sourcing the components needed, and we tried using a second Arduino board to clone the missing chips. In this one however, the main noise is being outputted to the Breadboard via 6 lines into a 6 bit R2R DAC. The schmitt triggers are mounted on a nuelectronics arduino board, which controls the vibrato and the wave selector units. The two extra pots on the breadboard are the pitch and speed selection pots. Stay tuned for more - next version promises to have some midi integration! Info: * R2R info: en.wikipedia.org/wiki/Resistor_Ladder * Original Design: little-scale.blogspot.com/2008/01/arduino-noise-maker-info.html