开源四轴飞控，挂物飞行，左/右旋转飞行，倾斜起飞，前后左右360度、360*2（720度，视频中最后一段就是720度翻滚），理论上还可以360*3、360*4翻滚-Open source axis flight control, hanging flight, left/right rotation flight, tilt off, around, 360 degrees, 360* 2 (720 degrees, the last paragraph of the video is 720