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MicroCuber is probably the world's first robot to solve the Microbic puzzle.
MicroCuber's mechanism is built entirely from LEGO bricks including a MINDSTORMS NXT kit with the addition of a Sony Ericsson Xperia Mini smartphone running a custom Android app. The app uses the smartphone's camera to capture images of each face of the cube which it then processes to determine the colors of the scrambled puzzle. After working out the solution, the app transmits the moves to the NXT controller via bluetooth to instruct it to solve the cube.
