twoADXL_oneARD

//////////////////////////////////////////////////////////////////
//©2011 bildr
//Released under the MIT License - Please reuse change and share
//Simple code for the ADXL335, prints calculated orientation via serial
//////////////////////////////////////////////////////////////////


//Analog read pins
const int xPin = 2;
const int yPin = 1;
const int zPin = 0;

const int xPin2 = 4; // this is the second ADXL 
const int yPin2 = 5; 
const int zPin2 = 3; 

//The minimum and maximum values that came from
//the accelerometer while standing still
//You very well may need to change these
int minVal = 283;
int maxVal = 354;


//to hold the caculated values
double x;
double y;
double z;

double x2;
double y2; // this is the second ADXL 
double z2;


void setup(){
  Serial.begin(9600);  //################################################################### BAUD BAUD 
}


void loop(){

  //read the analog values from the accelerometer
  int xRead = analogRead(xPin);
  int yRead = analogRead(yPin);
  int zRead = analogRead(zPin);

//this is the second ADXL 
  int x2Read = analogRead(xPin2);
  int y2Read = analogRead(yPin2);
  int z2Read = analogRead(zPin2);

  //convert read values to degrees -90 to 90 - Needed for atan2
  int xAng = map(xRead, minVal, maxVal, -90, 90);
  int yAng = map(yRead, minVal, maxVal, -90, 90);
  int zAng = map(zRead, minVal, maxVal, -90, 90);

  int x2Ang = map(x2Read, minVal, maxVal, -90, 90); //this is the second ADXL 
  int y2Ang = map(y2Read, minVal, maxVal, -90, 90);
  int z2Ang = map(y2Read, minVal, maxVal, -90, 90);
  

  //Caculate 360deg values like so: atan2(-yAng, -zAng)
  //atan2 outputs the value of -π to π (radians)
  //We are then converting the radians to degrees
  x = RAD_TO_DEG * (atan2(-yAng, -zAng) + PI);
  y = RAD_TO_DEG * (atan2(-xAng, -zAng) + PI);
  z = RAD_TO_DEG * (atan2(-yAng, -xAng) + PI);
  
  x2 = RAD_TO_DEG * (atan2(-y2Ang, -z2Ang) + PI);
  y2 = RAD_TO_DEG * (atan2(-x2Ang, -z2Ang) + PI);
  z2 = RAD_TO_DEG * (atan2(-y2Ang, -x2Ang) + PI);

  //Output the caculations
  
  Serial.print(x);
  Serial.print('-');
  Serial.print('-');
  Serial.print('-');
  Serial.println(y2);
  

    //delay(5);//just here to slow down the serial output - Easier to read
}