匿名飞控板的源代码，四旋翼的开源代码,有兴趣的-Anonymous flight control board source code, source code four rotor

APM开源代码，使用Arduino可以进行编译和阅读学习。apm作为一种强大的飞控，一直颇受青睐。-The APM source code, the use of Arduino can be compiled and learning to read. APM is a powerful control, has been popular.