arduino 加速度感測器 gy50 L3G4200 詢問

yasd468520

程式碼打好了 可是序列埠監控視窗顯示的 X值 Y值 Z值 感測器不管怎麼動 都顯示-1
對於程式我不是很厲害 我是參考別人的數值下去改
但始終找不出原因..
只好上來找大神來幫助





#include <Wire.h>
#include <L3G.h>
#define  CTRL_REG1 0x20
#define  CTRL_REG2 0x21
#define  CTRL_REG3 0x22
#define  CTRL_REG4 0x23
#define  CTRL_REG5 0x24




int L3G4200D_Address = 105;

int x;
int y;
int z;

void setup(){
  Wire.begin();
  Serial.begin(9600);

  Serial.println("starting up L3G4200D");
  setupL3G4200D(2000);
  delay(1500);
}

void loop(){
  getGyroValues();

  Serial.print("X:");
  Serial.print(x);
  Serial.print(" , ");


  Serial.print("Y:");
  Serial.print(y);
  Serial.print(" , ");
  
  Serial.print("Z:");
  Serial.println(z);

  delay(100);
  
}

void getGyroValues(){
  byte xMSB = readRegister(L3G4200D_Address, 0x29);
  byte xLSB = readRegister(L3G4200D_Address, 0x28);
  x = ((xMSB << 8) | xLSB);

  byte yMSB = readRegister(L3G4200D_Address, 0x2B);
  byte yLSB = readRegister(L3G4200D_Address, 0x2A);
  y = ((yMSB << 8) | yLSB);

  byte zMSB = readRegister(L3G4200D_Address, 0x2D);
  byte zLSB = readRegister(L3G4200D_Address, 0x2C);
  z = ((zMSB << 8) | zLSB);
}

int setupL3G4200D(int scale){
  writeRegister(L3G4200D_Address, CTRL_REG1, 0b00001111);

  writeRegister(L3G4200D_Address, CTRL_REG2, 0b00000000);

  writeRegister(L3G4200D_Address, CTRL_REG3, 0b00001000);

  if(scale == 250){
    writeRegister(L3G4200D_Address, CTRL_REG4, 0b00000000);
  }else if(scale == 500){
    writeRegister(L3G4200D_Address, CTRL_REG4, 0b00010000);
  }else{
    writeRegister(L3G4200D_Address, CTRL_REG4, 0b00110000);
  }
  writeRegister(L3G4200D_Address, CTRL_REG5, 0b00000000);
}

void writeRegister(int deviceAddress, byte address, byte val){
  Wire.beginTransmission(deviceAddress);
  Wire.write(address);
  Wire.write(val);
  Wire.endTransmission();
}


int readRegister(int deviceAddress, byte address){
  int V;
  Wire.beginTransmission(deviceAddress);
  Wire.write(address);
  Wire.endTransmission();

  Wire.requestFrom(deviceAddress,1);

  while(Wire.available()){
  }
    V = Wire.read();
    return V;
  }