[Tom] recently started experimenting with Charlieplexing, and wrote in to share the 4x4x4 cube he built with an ATtiny24. Similar to this minimalist 4x4x4 LED cube we featured the other day, [Tom’s] ...
March 10 (UPI) --A pair of British brothers earned a Guinness World Records title when their robot solved a 4x4x4 Rubik's Cube in 45.3 seconds. Matthew and Thomas Pidden, brothers who share a passion ...