2个MPU6050连接Arduino

MPU6050为三轴陀螺仪，单个MPU6050连接Arduino可参考：Arduino操作MPU6050

当2个MPU6050同时连接Arduino并分别读取数据时，操作如下（以Arduino MEGA board为例）：

接线

对于第一个MPU6050： 

MPU6050（1）	Arduino MEGA board
VCC	3.3V
GND	GND
SCL	SCL
SDA	SDA

对于第二个MPU6050（将VCC替换为AD0，连接至3.3V处，其他接线相同）：

MPU6050 (2)	Arduino MEGA board
AD0	3.3V
GND	GND
SCL	SCL
SDA	SDA

代码

Arduino IDE中代码如下：

#include "Wire.h"

const int MPU_ADDR1 = 0X68;
const int MPU_ADDR2 = 0X69;

int16_t accelerometer_x, accelerometer_y, accelerometer_z;
int16_t gyro_x, gyro_y, gyro_z;
int16_t temperature;

char tmp_str[7];

char* convert_int16_to_str(int16_t i) {
  sprintf(tmp_str, "%d", i);
  return tmp_str;
}

void setup() {
  Serial.begin(9600);
  Wire.begin();
  Wire.beginTransmission(MPU_ADDR1);
  Wire.write(0x6B);
  Wire.write(0);
  Wire.endTransmission(true);

  Wire.begin();
  Wire.beginTransmission(MPU_ADDR2);
  Wire.write(0x6B);
  Wire.write(0); 
  Wire.endTransmission(true);
}

void loop() {
  Wire.beginTransmission(MPU_ADDR1);
  Wire.write(0x3B);
  Wire.endTransmission(false);
  Wire.requestFrom(MPU_ADDR1, 7 * 2, true);

  accelerometer_x = Wire.read() << 8 | Wire.read();
  accelerometer_y = Wire.read() << 8 | Wire.read();
  accelerometer_z = Wire.read() << 8 | Wire.read();

  Serial.print(convert_int16_to_str(accelerometer_x));
  Serial.print(",");
  Serial.print(convert_int16_to_str(accelerometer_y));
  Serial.print(",");
  Serial.print(convert_int16_to_str(accelerometer_z));
  Serial.print("|");

  Wire.beginTransmission(MPU_ADDR2);
  Wire.write(0x3B);
  Wire.endTransmission(false);
  Wire.requestFrom(MPU_ADDR2, 7 * 2, true);

  accelerometer_x = Wire.read() << 8 | Wire.read();
  accelerometer_y = Wire.read() << 8 | Wire.read();
  accelerometer_z = Wire.read() << 8 | Wire.read();

  Serial.print(convert_int16_to_str(accelerometer_x));
  Serial.print(",");
  Serial.print(convert_int16_to_str(accelerometer_y));
  Serial.print(",");
  Serial.print(convert_int16_to_str(accelerometer_z));
  Serial.println();
  delay(200);
}