项目实现司南的指针计算，结合磁和加速度两个传感器的小算法实现-Sinan calculated to achieve the target project, combining the two magnetic and acceleration sensors for small algorithm

利用加速度计、陀螺仪、地磁解算姿态的好文章，英文名Design of orientation estimation system by inertial and magnetic sensors-The use of an accelerometer, a gyroscope, a geomagnetic solver attitude of good articles, the English name Design of orientation estimation system by in