Nokia-based Rubik’s Cube solver

Mindstorms Rubik’s Cube solvers are a dime a dozen, but David Gilday’s bot offers two cool twists (sorry) — first, it solves a 4×4 cube rather than the classic, ordinary 3×3 cube. Second, and cooler, rather than relying on the NXT Intelligent Brick to do the heavy lifting, it uses a Nokia N95 mobile phone that sits in a cradle above the cube, scanning it with its camera and solving the puzzle.

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