Arduino驱动QMC6308地磁传感器调试笔记（2）

#include <Wire.h>
 // the setup routine runs once when you press reset:


void setup() {
   // initialize serial communication at 9600 bits per second:
   Wire.begin();
   Serial.begin(9600);
 }

// the loop routine runs over and over again forever:
void loop() {
   int num;

  Wire.beginTransmission(44);     //address 0x2ch
   Wire.write(10);                        //配置Control Register 1
   Wire.write(0xc3);
   Wire.endTransmission(true);
   delay(200);

  Wire.beginTransmission(44);       
   Wire.write(10);
   Wire.endTransmission(false);
   Wire.requestFrom(44,1,1);        //读取Control Register 1
   char conctrl_1reg = Wire.read();
   Serial.println(conctrl_1reg,DEC);
   delay(200);
   
   Wire.beginTransmission(44);    //address 0x2ch
   Wire.write(11);                       //配置Control Register 2
   Wire.write(0x00);
   Wire.endTransmission(true);
   delay(200);

  Wire.beginTransmission(44);       
   Wire.write(11);
   Wire.endTransmission(false);
   Wire.requestFrom(44,1,1);           //读取Control Register 2
   char conctrl_2reg = Wire.read();
   Serial.println(conctrl_2reg,DEC);

  while(1)
   {
     delay(200);
     Wire.beginTransmission(44);       
     Wire.write(9);
     Wire.endTransmission(false);
     Wire.requestFrom(44,1,1);        //读取Status Register 1 DRDY标志
     char staflg = Wire.read();

   
     if(staflg & 0x01)                      //数据准备就绪
     {
       staflg = 0;
       delay(200);                           //读取寄存器1-6
       Wire.beginTransmission(44);
       Wire.write(2);
       Wire.endTransmission(false);
       Wire.requestFrom(44,1,1);
       int x_out = Wire.read();
      
       Wire.beginTransmission(44);
       Wire.write(1);
       Wire.endTransmission(false);
       Wire.requestFrom(44,1,1);
        x_out = (x_out << 8)| (Wire.read());
       
       Wire.beginTransmission(44);
       Wire.write(4);
       Wire.endTransmission(false);
       Wire.requestFrom(44,1,1);
       int y_out = Wire.read();
       
       Wire.beginTransmission(44);
       Wire.write(3);
       Wire.endTransmission(false);
       Wire.requestFrom(44,1,1);
       y_out = (y_out << 8)|( Wire.read());

      Wire.beginTransmission(44);
       Wire.write(6);
       Wire.endTransmission(false);
       Wire.requestFrom(44,1,1);
       int z_out = Wire.read();

      Wire.beginTransmission(44);
       Wire.write(5);
       Wire.endTransmission(false);
       Wire.requestFrom(44,1,1);
       z_out = (z_out << 8)|( Wire.read());
       
       //Serial.println("x");
       //Serial.print(',');                //输出寄存器xyz数据
       Serial.print(x_out,DEC);
       Serial.print(',');
       //Serial.println("y");
       Serial.print(y_out,DEC);
       Serial.print(',');
       //Serial.println("z");
       Serial.print(z_out,DEC);
       Serial.println(",");
     } 
   }
 }

打开arduino IDE串口绘图窗口可以看到数据输出，并且跟随地磁传感器的方向按一定的规律变化

快去体验下功能实现初步正确带来的欣喜。

项目洽谈合作：18665321219