Floating interface robot with SMA double arms for gesture communication

By combining SMA (Shape Memory Alloy) ultra-light double arms and a multirotor, we propose a small and light floating interface robot. A small and ultra-light (12g weight) SMA arm was fabricated, which has four degrees of freedom at the shoulder and elbow. A waving hand gesture bending the elbow joint was selected as a target gesture, and our prototype SMA arm had achieved it. Combining our prototype SMA ultra-light double arms and a multirotor, a floating interface robot having variety arm gestures was successfully demonstrated.