bma020.pde

基于arduino的BMA020采集

#include <Wire.h>

#define ACCELEROMETER 0x38 

#define X_OUT1	   0x02 
#define X_OUT2	   0x03
#define Y_OUT1	   0x04 
#define Y_OUT2	   0x05
#define Z_OUT1	   0x06 
#define Z_OUT2	   0x07


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


void loop() {
 short  temp;
 
  temp=accRead(X_OUT2);
  temp<<=8;
  temp|=accRead(X_OUT1);
  temp=temp>>6;
  Serial.print("X: "); 
  Serial.print(temp, DEC);
  Serial.print ("   ");
    
      
  temp=accRead(Y_OUT2);
  temp<<=8;
  temp|=accRead(Y_OUT1);
  temp=temp>>6;
   Serial.print("Y: "); 
   Serial.print(temp, DEC);
   Serial.print ("   ");
    
   temp=accRead(Z_OUT2);
   temp<<=8;
   temp|=accRead(Z_OUT1);
   temp=temp>>6;
    Serial.print("Z: "); 
    Serial.print(temp, DEC); 
    Serial.println();  
    
    delay(100);
}

byte accRead(byte address){
    byte val = 0x00;
    Wire.beginTransmission(ACCELEROMETER);
    Wire.send(address);
    Wire.endTransmission();
    Wire.requestFrom(ACCELEROMETER, 1);
    
	  val = Wire.receive();
    
    Wire.endTransmission();
    return val;
}