陀螺仪和加速度仪的初学资料，有详细的解释，如果要开发三轴传感器的朋友看看，像4轴飞行器和平衡小车-Gyroscopes and accelerometers instrument beginner information, detailed explanation, if you want to take a look at the development of the triaxial sensor' s friend, like a 4-axis aircraft and the ba