Vibration‐Driven Stimulus‐Responsive and Omnidirectional Crawling Robot with the Bionic Bristle

Inspired by the game that the Setaria viridis can crawl quickly on the surface of bamboo flat winnowing basket when scratched back and forth, a new design strategy for bristle robots that is through vibration force driving robot crawling are proposed. It is found that the crawling speed of the soft robots is different upon the difference in angles and lengths of bristles, and the maximum crawling speed (167 mm s ⁻¹ ) is more than 2000 times of the photothermal‐driven bristle robot (0.73 mm s ⁻¹ ) reported in previous work. Through assembling the functional modules, a “two‐module” bristle robot has also been prepared, which not only has load‐crawling capability but also performs excellently in crawling quickly on a wide range of surfaces. Furtherly, the ‘T’‐shaped “four‐module” robot achieves controlled steering behavior and movement in complex terrain. Finally, “Z”‐shaped “four‐module” robot is designed and prepared with a stimulus‐responsive liquid crystal polymer actuator integrated into the electronic control circuit of the robot, which equips the robot with the intelligence to sense the ambient temperature and successfully realized the autonomous start–stop operation, steering and U‐turning of the robot avoiding the high‐temperature damage, achieving the purpose of robot smart movement.