Ruby is a cube-shaped robot that is approximately 10x10x10 cm in size. It is equipped with a four-wheel tank-drive that is powered with two N20 motors. A head display consists of two 128×32 OLED screens. The robot can transform into a “cube” shape by retracting its top lid and wheels into its body, actuated independently by three SG-90 servos.

Ruby is a cube-shaped robot that is approximately 10x10x10 cm in size. It is equipped with a four-wheel tank-drive that is powered with two N20 motors. A head display consists of two 128×32 OLED screens. The robot can transform into a “cube” shape by retracting its top lid and wheels into its body, actuated independently by three SG-90 servos.