For an interesting and somewhat futuristic form of user input, consider the following 3D controller. Using three aluminium-covered squares as capacitive sensors (one for each axis), Kyle McDonald has a very neat system that can roughly determine the position of your hand within the open cube. To take advantage of this, he has included a processing sketch to demonstrate monitoring the controller by a PC, for example:
For complete instructions visit Kyle's project page. And for more, we're on twitter and Google+, so follow us for news and product updates as well.
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