Hardware Steel ball + Arduino + hacks = amazing Katamari Damacy controller Why this hasn’t been done before is a mystery to me. This little hack project by Kellbot of NYCResistor takes a rolling ball, an optical mouse, a gutted PS2 controller, and some Arduino hacking and makes it into a working (and awesome) virtual Katamari. Why didn’t they have special controllers like this that came with the g
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