MPU6050预定义参数

1. define MPU6050_ADDRESS_AD0_LOW 0x68 // address pin low (GND), default for InvenSense evaluation board
2. define MPU6050_DEFAULT_ADDRESS MPU6050_ADDRESS_AD0_LOW

• 初始化姿态默认值:
  

例：MPU6050(uint8_t address = MPU6050_DEFAULT_ADDRESS);