Video: China's humanoid robot Robotera L7 performs stunning sword dance

China’s Robotera has released a video featuring its humanoid robot L7 performing a traditional Chinese sword dance to celebrate the Chinese New Year of the Fire Horse. The L7 robot, developed with Tsinghua University, stands 5.6 feet tall, weighs about 143 pounds, and is constructed from titanium and carbon fiber for strength and lightness. It boasts 55 independently moving joints, including 7 per arm and 12 in the hands, enabling complex motions such as arm rotation, wrist flipping, and grip adjustments. The sword dance demonstration highlights the robot’s advanced capabilities in full-body control, timing, rhythm, and high-speed directional changes, requiring precise balance and coordination to avoid self-injury with the blade. The robot’s performance is powered by an embedded AI control system that manages whole-body dynamic coordination, real-time motion planning, torque control, and multi-axis balance during rapid movements. This enables the L7 to execute stable jumps, spins, and intricate swordplay with tight real