The Winduino II is a wireless, digital version of an Aeolian harp that can be listened to on its own or used as accompaniment for other instruments.

The Winduino II features solar panels optimized for charging the new Lithium Ion rechargeable battery as quickly as possible. Using the Sparkfun developed LiPoly Charger circuit, the Winduino II can also be charged via USB or wall wart. Embedded underneath the wood veneer are two lights (see photos below) that tell the user when the power is on (green) and when it is charging (red).

A new type of piezo sensor has been incorporated to detect the movement of air around the Winduino II. The sensitivity of these sensors can be adjusted using different sized/shaped vellum coverings.

The Winduino II software uses the recently released Max for Live software to add the convenience, flexibility and stability of Live and Max/MSP in one piece of software. Now the Winduino II can generate any sound a user can come up with by processing the midi generated by Max/MSP directly in Live.