MPU 6050 Code not sensing angle

Using Arduino Sensors
1

Hi,

Have been trying to use an MPU6050 to find the angle of a sensor. So far on serial monitor all of the angles only display 225. My arduino and MPU are connected in the same way as the webiste, here is the code and the website

#include<Wire.h>
 
const int MPU_addr=0x68;
int16_t AcX,AcY,AcZ,Tmp,GyX,GyY,GyZ;
 
int minVal=265;
int maxVal=402;
 
double x;
double y;
double z;
 
void setup(){
Wire.begin();
Wire.beginTransmission(MPU_addr);
Wire.write(0x6B);
Wire.write(0);
Wire.endTransmission(true);
Serial.begin(9600);
}
void loop(){
Wire.beginTransmission(MPU_addr);
Wire.write(0x3B);
Wire.endTransmission(false);
Wire.requestFrom(MPU_addr,14,true);
AcX=Wire.read()<<8|Wire.read();
AcY=Wire.read()<<8|Wire.read();
AcZ=Wire.read()<<8|Wire.read();
int xAng = map(AcX,minVal,maxVal,-90,90);
int yAng = map(AcY,minVal,maxVal,-90,90);
int zAng = map(AcZ,minVal,maxVal,-90,90);
 
x= RAD_TO_DEG * (atan2(-yAng, -zAng)+PI);
y= RAD_TO_DEG * (atan2(-xAng, -zAng)+PI);
z= RAD_TO_DEG * (atan2(-yAng, -xAng)+PI);
 
Serial.print("AngleX= ");
Serial.println(x);
 
Serial.print("AngleY= ");
Serial.println(y);
 
Serial.print("AngleZ= ");
Serial.println(z);
Serial.println("-----------------------------------------");
delay(400);
}
2

Working backwards, 255 = atan2(-90,-90). You are reading pure zeros. Check the connections and the addresses.

3

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