MPU6050 connection failed while using obj of MPU6050

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1

I am using mpu6050 for my project but it shows following error -

Testing device connections...

MPU6050 connection failed

this error is showed only when iI am trying to use object of MPU6050

but when I don't use instance of MPU6050 and use Wire library instead (like follow) it works -

`Wire.begin(); // Initialize communication`

`Wire.beginTransmission(MPU); // Start communication with MPU6050 // MPU=0x68`

`Wire.write(0x6B); // Talk to the register 6B`

`Wire.write(0x00); // Make reset - place a 0 into the 6B register`

`Wire.endTransmission(true); //end the transmission`

but I want to use this code -

`mpu.initialize(); //start MPU`

`Serial.println(F("Testing device connections...")); //debugging serial statement`

`Serial.println(mpu.testConnection() ? F("MPU6050 connection successful") : F("MPU6050 connection failed"));`

`// supply your own gyro offsets here, scaled for min sensitivity`

`mpu.setXGyroOffset(0);`

`mpu.setYGyroOffset(0);`

`mpu.setZGyroOffset(0);`

`mpu.setZAccelOffset(1688);`

please help me

2

@manish34, your topic has been moved to a more suitable section on the forum.

3

Hi,
Welcome to the forum.
Can you please post the full code that you want to use, that fails?

Thanks.. Tom... :grinning: :+1: :coffee: :australia:

4

This code is from adafruit but it dosent work

// Basic demo for accelerometer readings from Adafruit MPU6050

#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>
#include <Wire.h>

Adafruit_MPU6050 mpu;

void setup(void) {
  Serial.begin(115200);
  while (!Serial)
    delay(10); // will pause Zero, Leonardo, etc until serial console opens

  Serial.println("Adafruit MPU6050 test!");

  // Try to initialize!
  if (!mpu.begin()) {
    Serial.println("Failed to find MPU6050 chip");
    while (1) {
      delay(10);
    }
  }
  Serial.println("MPU6050 Found!");

  mpu.setAccelerometerRange(MPU6050_RANGE_8_G);
  Serial.print("Accelerometer range set to: ");
  switch (mpu.getAccelerometerRange()) {
  case MPU6050_RANGE_2_G:
    Serial.println("+-2G");
    break;
  case MPU6050_RANGE_4_G:
    Serial.println("+-4G");
    break;
  case MPU6050_RANGE_8_G:
    Serial.println("+-8G");
    break;
  case MPU6050_RANGE_16_G:
    Serial.println("+-16G");
    break;
  }
  mpu.setGyroRange(MPU6050_RANGE_500_DEG);
  Serial.print("Gyro range set to: ");
  switch (mpu.getGyroRange()) {
  case MPU6050_RANGE_250_DEG:
    Serial.println("+- 250 deg/s");
    break;
  case MPU6050_RANGE_500_DEG:
    Serial.println("+- 500 deg/s");
    break;
  case MPU6050_RANGE_1000_DEG:
    Serial.println("+- 1000 deg/s");
    break;
  case MPU6050_RANGE_2000_DEG:
    Serial.println("+- 2000 deg/s");
    break;
  }

  mpu.setFilterBandwidth(MPU6050_BAND_21_HZ);
  Serial.print("Filter bandwidth set to: ");
  switch (mpu.getFilterBandwidth()) {
  case MPU6050_BAND_260_HZ:
    Serial.println("260 Hz");
    break;
  case MPU6050_BAND_184_HZ:
    Serial.println("184 Hz");
    break;
  case MPU6050_BAND_94_HZ:
    Serial.println("94 Hz");
    break;
  case MPU6050_BAND_44_HZ:
    Serial.println("44 Hz");
    break;
  case MPU6050_BAND_21_HZ:
    Serial.println("21 Hz");
    break;
  case MPU6050_BAND_10_HZ:
    Serial.println("10 Hz");
    break;
  case MPU6050_BAND_5_HZ:
    Serial.println("5 Hz");
    break;
  }

  Serial.println("");
  delay(100);
}

void loop() {

  /* Get new sensor events with the readings */
  sensors_event_t a, g, temp;
  mpu.getEvent(&a, &g, &temp);

  /* Print out the values */
  Serial.print("Acceleration X: ");
  Serial.print(a.acceleration.x);
  Serial.print(", Y: ");
  Serial.print(a.acceleration.y);
  Serial.print(", Z: ");
  Serial.print(a.acceleration.z);
  Serial.println(" m/s^2");

  Serial.print("Rotation X: ");
  Serial.print(g.gyro.x);
  Serial.print(", Y: ");
  Serial.print(g.gyro.y);
  Serial.print(", Z: ");
  Serial.print(g.gyro.z);
  Serial.println(" rad/s");

  Serial.print("Temperature: ");
  Serial.print(temp.temperature);
  Serial.println(" degC");

  Serial.println("");
  delay(500);
}
5

Hi,
Can you please post a circuit diagram?

What model Arduino are you using?

Thanks.. Tom... :smiley: :+1: :coffee: :australia:

6

the problem is not in connection bcoz when I use the wire code it works-
Wire.begin(); // Initialize communication

Wire.beginTransmission(MPU); // Start communication with MPU6050 // MPU=0x68

Wire.write(0x6B); // Talk to the register 6B

Wire.write(0x00); // Make reset - place a 0 into the 6B register

Wire.endTransmission(true); //end the transmission

7

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