Hello everyone,
I’ve been trying to connect two MPU6050-GY521 sensors to my Arduino Mega 2560 and looking it up but every time I run it with some code I wrote, it shows both MPU6050 values as one reading.
My Connections
3.3V → MPU 1 VCC, MPU 2 VCC, MPU 1 AD0
GND → MPU 1 GND, MPU 2 GND, MPU 2 AD0
SDA(PIN 20) → MPU 1 SDA, MPU 2 SDA
SCL(PIN 21) → MPU 1 SCL, MPU 2 SCL
I also have the code attached that prints the AY-value of each MPU but I’m not sure where I went wrong. Could someone please take me step-by-step through this process with the wiring and the code, I really need it to finish a project I’m working on. Thanks so much!
#include “Wire.h”
#include “I2Cdev.h”
#include “MPU6050.h”
MPU6050 accel1(0x68);
MPU6050 accel2(0x69);
int16_t ax1, ay1, az1;
int16_t gx1, gy1, gz1;
int16_t ax2, ay2, az2;
int16_t gx2, gy2, gz2;
void setup ( )
{
Wire.begin ( );
Serial.begin(38400);
Serial.println ( “Initializing the sensors” );
accel1.initialize();
accel2.initialize();
Serial.println(“Testing device connections…”);
Serial.println(accel1.testConnection() ? “MPU6050 #1 connection successful” : “MPU6050 connection failed”);
Serial.println(accel2.testConnection() ? “MPU6050 #2 connection successful” : “MPU6050 connection failed”);
delay (1000);
Serial.println ( “Taking Values from the sensor” );
delay (1000);
}
void loop ( )
{
accel1.getMotion6(&ax1, &ay1, &az1, &gx1, &gy1, &gz1);
accel2.getMotion6(&ax2, &ay2, &az2, &gx2, &gy2, &gz2);
// display tab-separated accel/gyro x/y/z values
Serial.print(“MPU1:\t”);
Serial.print(ay1); Serial.print("\t");
// display tab-separated accel/gyro x/y/z values
Serial.print(“MPU2:\t”);
Serial.print(ay2); Serial.println("\t");
delay(100);
}
