MPU6050 não mostra os dados

Boa noite.

Estou utilizano o Arduino Uno R3 ligado a dois sensores mpu6050 conforme a figura abaixo, só que liguei o ADO do sensor inferior no barramento azul (-).

[http://https://www.google.com/imgres?imgurl=https%3A%2F%2Fforum.arduino.cc%2Findex.php%3Faction%3Ddlattach%3Btopic%3D118937.0%3Battach%3D52485&imgrefurl=https%3A%2F%2Fforum.arduino.cc%2Findex.php%3Ftopic%3D118937.0&tbnid=Izp17enAXezj-M&vet=12ahUKEwifhL777IrtAhXkA7kGHfUjBSUQMygCegUIARCcAQ…i&docid=EkGSF4tl_t707M&w=1359&h=1803&q=2%20mpu6050%20arduino&ved=2ahUKEwifhL777IrtAhXkA7kGHfUjBSUQMygCegUIARCcAQ](http://“http://https://www.google.com/imgres?imgurl=https%3A%2F%2Fforum.arduino.cc%2Findex.php%3Faction%3Ddlattach%3Btopic%3D118937.0%3Battach%3D52485&imgrefurl=https%3A%2F%2Fforum.arduino.cc%2Findex.php%3Ftopic%3D118937.0&tbnid=Izp17enAXezj-M&vet=12ahUKEwifhL777IrtAhXkA7kGHfUjBSUQMygCegUIARCcAQ…i&docid=EkGSF4tl_t707M&w=1359&h=1803&q=2 mpu6050” arduino&ved=2ahUKEwifhL777IrtAhXkA7kGHfUjBSUQMygCegUIARCcAQ)

Quando conecto o programa é compilado e carregado normalmente mas ao abrir o Monitor Serial nenhum dado aparece.
O que pode ser?

Código utilizado:
#include<Wire.h>
const int MPU_addr_1 = 0x68; // I2C address of the first MPU-6050
const int MPU_addr_2 = 0x69; // I2C address of the second MPU-6050
int16_t AcX1, AcY1, AcZ1, Tmp1, AcX2, AcY2, AcZ2, Tmp2; // definition of variables

void setup() {
Wire.begin();
Wire.beginTransmission(MPU_addr_1);
Wire.write(0x6B); // PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);
Serial.begin(9600);
Wire.begin();
Wire.beginTransmission(MPU_addr_2);
Wire.write(0x6B); // PWR_MGMT_1 register
Wire.write(0); // set to zero (wakes up the MPU-6050)
Wire.endTransmission(true);
Serial.begin(9600);
}

void loop() {
Wire.beginTransmission(MPU_addr_1);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU_addr_1, 14, true); // request a total of 14 registers
float AcX1 = Wire.read() << 8 | Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)
float AcY1 = Wire.read() << 8 | Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)
float AcZ1 = Wire.read() << 8 | Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40 (ACCEL_ZOUT_L)
Tmp1 = Wire.read() << 8 | Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)

Wire.beginTransmission(MPU_addr_2);
Wire.write(0x3B); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU_addr_2, 14, true); // request a total of 14 registers
float AcX2 = Wire.read() << 8 | Wire.read(); // 0x3B (ACCEL_XOUT_H) & 0x3C (ACCEL_XOUT_L)
float AcY2= Wire.read() << 8 | Wire.read(); // 0x3D (ACCEL_YOUT_H) & 0x3E (ACCEL_YOUT_L)
float AcZ2 = Wire.read() << 8 | Wire.read(); // 0x3F (ACCEL_ZOUT_H) & 0x40 (ACCEL_ZOUT_L)
Tmp2 = Wire.read() << 8 | Wire.read(); // 0x41 (TEMP_OUT_H) & 0x42 (TEMP_OUT_L)

Serial.print(AcX1 / 16384);
Serial.print(" “);
Serial.print(AcY1 / 16384);
Serial.print(” “);
Serial.print(AcZ1 / 16384);
Serial.print(” “);
Serial.print(Tmp1 / 340.00 + 36.53);
Serial.print(” “);
Serial.print(AcX2 / 16384);
Serial.print(” “);
Serial.print(AcY2 / 16384);
Serial.print(” “);
Serial.print(AcZ2 / 16384);
Serial.print(” ");
Serial.println(Tmp2 / 340.00 + 36.53);
delay(500);
}

Já experimentaste apenas com um?