byte fileCounter = 3 ;
byte sensorCounter = 0;
boolean done = false;
int ledPin = 11;


void setup(){
  pinMode(ledPin,OUTPUT);

  Serial.begin(19200);
  digitalWrite(ledPin, HIGH);

  // have device warm up
  delay(5000);

  // send two Carraige Returns to AutoSet Baudrate
  Serial.print('\r',BYTE);
  Serial.print('\r',BYTE);

  delay(5000);

  Serial.print('q',BYTE);
  Serial.print('\r',BYTE);

  delay(5000);

  setupFile();

  delay(5000);

/*  Serial.print("s #1 0"); // send 2 bytes (one is the sensor number,one is the \n for reading later)
  Serial.print('\r',BYTE);

  delay(5000);  */
}

void loop(){
  if(!done){
    if(sensorCounter < 20){
      if (digitalRead(ledPin) == HIGH) {
        digitalWrite(ledPin, LOW);
      } 
      else {
        digitalWrite(ledPin, HIGH);
      }
      byte analog = analogRead(0) / 4;

      Serial.print("w #1 2"); // send 2 bytes (one is the sensor number,one is the \n for reading later)
      Serial.print('\r',BYTE);

      delay(1000);


      Serial.print(analog,BYTE);
      Serial.print('\n',BYTE);
      Serial.print('\r',BYTE);

      delay(1000);

      sensorCounter++;
    } 
    else {

      digitalWrite(11,HIGH);
      done = true;
    }
  }
  //    delay(1000);
}

void setupFile(){

  Serial.print("ow A:\\DATA");
  Serial.print(fileCounter,DEC);
  Serial.print(".TXT");
  Serial.print('\r',BYTE); // CR to send message
}