/*  
 *  Arduino2Max
 *  Send pin values from Arduino to MAX/MSP
 *  
 *  Arduino2Max.pde
 *  ------------  
 *  This version: .4, October 2007
 *  ------------
 *  Copyleft: use as you like
 *  by Daniel Jolliffe
 *  Based on a sketch and patch by Thomas Ouellet Fredericks  tof.danslchamp.org
 *  
 *  Heavily edited for his own purposes by, Michael Berger (2008-9)
 */


int x = 0; 
int ledpin = 13;

void setup()
{
  Serial.begin(115200);               // 115200 is the default Arduino Bluetooth speed
  digitalWrite(13,HIGH);              ///startup blink
  delay(600);
  digitalWrite(13,LOW);
  pinMode(13,INPUT);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
}



void loop()
{ 

 //if (Serial.available() > 0){         // Check serial buffer for characters

  //  if (Serial.read() == 'r') {       // If an 'r' is received then read the pins


//**************************************************
//ANALOG READ 0-2
for (int pin = 0; pin <= 2; pin++){      // Read and send analog pins 0-2 (accelerometer)
        x = analogRead(pin);
        sendValue (x);
      }  

//**************************************************  
//MULTIPLEXED ANALOG READ 3
    //Hall Effect #1 (LHL)
    digitalWrite(2, LOW);
    digitalWrite(3, HIGH);
    digitalWrite(4, LOW);         
    sendValue(analogRead(3));
    //Hall Effect #2 (LHH)
    digitalWrite(4, HIGH);
    sendValue(analogRead(3));
    //Hall Effect #3 (LLL)
    digitalWrite(3, LOW);
    digitalWrite(4, LOW);         
    sendValue(analogRead(3));
    //Hall Effect #4 (LLH)
    digitalWrite(4, HIGH); 
    sendValue(analogRead(3));
    //Hall Effect #5 (HLL)
    digitalWrite(2, HIGH);
    digitalWrite(4, LOW);         
    sendValue(analogRead(3));
    //Hall Effect #6 (HLH)
    digitalWrite(4, HIGH); 
    sendValue(analogRead(3));
//**************************************************

       
      Serial.println();                 // Send a carriage returnt to mark end of pin data. 
      delay (5);                        // add a delay to prevent crashing/overloading of the serial port

 //  }

 // }
}

//**************************************************
//  FUNCTIONS
//**************************************************
void sendValue (int x){              // function to send the pin value followed by a "space". 
  Serial.print(x);
  Serial.print(32, BYTE); 
}