How fast can you solve a Rubik's Cube? A few days? Minutes? How about less than 10 seconds?
That's what the Cubestormer 3 robot managed to do this weekend, solving the colourful puzzle in just 3.253 seconds.
The robot uses an ARM-powered Samsung Galaxy S4 smartphone with an Exynos 5 Octa application processor and eight-core ARM big.LITTLE implementation featuring four ARM Cortex-A15 and four Cortex-A7 processors. The phone analyses the cube, calculates the correct sequence of moves and instructs four robotic hands to perform the manipulations. ARM9 processors also power the eight LEGO Mindstorm EV3 bricks that perform the motor sequencing and control.
The Cubestormer 3 was at the Big Bang Fair in Birmingham on Saturday, trying to break its 2012 record of 5.27 seconds, and it succeeded handily, earning it a Guinness World Record for the fastest robot to solve a Rubik's Cube.
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