https://blog.csdn.net/chinazhangzhong123/article/details/79268421
mavlink似乎校验位上比串口要多,比串口更可靠,莫非这就是不直接用串口的原因么?
https://blog.csdn.net/chinazhangzhong123/article/details/79268421
https://zhuanlan.zhihu.com/p/57693160
https://www.jianshu.com/p/e57aa664103f
https://blog.csdn.net/csdnhuaong/article/details/78149104