MPU6050¶

Overview¶

In this tutorial, you’ll learn to interface the GY-87 IMU module with an Arduino Uno, focusing on the MPU6050 sensor. We’ll cover initializing the MPU6050 and displaying its accelerometer, gyroscope, and temperature data on the Serial Monitor. This lesson is essential for projects needing motion and temperature sensing, like robotics, gesture-controlled devices, and interactive art installations.

Required Components¶

In this project, we need the following components.

It’s definitely convenient to buy a whole kit, here’s the link:

Name	ITEMS IN THIS KIT	LINK
Elite Explorer Kit	300+	Elite Explorer Kit

You can also buy them separately from the links below.

COMPONENT INTRODUCTION	PURCHASE LINK
Arduino Uno R4 WiFi	-
Jumper Wires	BUY
GY-87 IMU module	-

Wiring¶

Schematic Diagram¶

Code¶

Note

You can open the file 09-gy87_mpu6050.ino under the path of elite-explorer-kit-main\basic_project\09-gy87_mpu6050 directly.
Or copy this code into Arduino IDE.

Note

To install the library, use the Arduino Library Manager and search for “Adafruit MPU6050” and install it.

Code Analysis¶

Include Libraries

The Adafruit_MPU6050, Adafruit_Sensor, and Wire libraries are included for sensor interfacing and communication.
```
#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>
#include <Wire.h>
```
Initialize Sensor Object

An object of the Adafruit_MPU6050 class is created to represent the MPU6050 sensor.
```
Adafruit_MPU6050 mpu;
```
Setup Function

Initializes serial communication and calls the function to initialize the MPU6050 sensor.
```
void setup() {
  Serial.begin(9600);
  initializeMPU6050();
}
```
Loop Function

Repeatedly calls the function to print MPU6050 data with a delay of 500 milliseconds between each call.
```
void loop() {
  printMPU6050();
  delay(500);
}
```

Initialize MPU6050 Function

Checks if the MPU6050 is connected, sets accelerometer and gyro ranges, and configures the filter bandwidth.

void initializeMPU6050() {
  // Check if the MPU6050 sensor is detected
  if (!mpu.begin()) {
    Serial.println("Failed to find MPU6050 chip");
    while (1)
      ;  // Halt if sensor not found
  }
  Serial.println("MPU6050 Found!");

  // set accelerometer range to +-8G
  mpu.setAccelerometerRange(MPU6050_RANGE_8_G);

  // set gyro range to +- 500 deg/s
  mpu.setGyroRange(MPU6050_RANGE_500_DEG);

  // set filter bandwidth to 21 Hz
  mpu.setFilterBandwidth(MPU6050_BAND_21_HZ);

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

Print MPU6050 Data Function

Reads and prints the acceleration, gyroscope, and temperature data from the MPU6050 to the Serial Monitor.

void printMPU6050() {

  Serial.println();
  Serial.println("MPU6050 ------------");

  /* 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("MPU6050 ------------");
  Serial.println();
}