I'm using gy-521 module and I'm wondering how can i get useful readings from it so that i could work with the data that I'm receiving.
I want for AcX and AcY variable values to be from -255 to 255. How to make this work.
sample data that I'm getting right now
X = 16380 Y = -64
X = 8116 Y = 3520
X = 12564 Y = 8728
X = -12652 Y = 1296
X = -17732 Y = -2420
X = -14576 Y = -2264
;
#include<Wire.h>
const int MPU_addr=0x68;
int16_t AcX,AcY;
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); // starting with register 0x3B (ACCEL_XOUT_H)
Wire.endTransmission(false);
Wire.requestFrom(MPU_addr,14,true);
AcX=Wire.read()<<8|Wire.read();
AcY=Wire.read()<<8|Wire.read();
Serial.print("X = "); Serial.print(AcX);
Serial.print(" Y = "); Serial.println(AcY);
delay(333);
}