Connecting multiple MPU6050(GY521) to Arduino Due

Using Arduino Sensors
3

The "AD0 trick" works.

Please clean up the code by removing all the extraneous comments, and adding comments where appropriate.

For example, what is connected to pins 52 and 53? (I assume AD0 pins).

 digitalWrite(53,HIGH);
      digitalWrite(52,LOW);
      Wire.beginTransmission(MPU_ADDR);

How do you know which sensor is being addressed? You print the same heading twice in a row:

    Serial.print("Giroscopi 1 ");