 
 //loop repeats continuously
 void loop(){
-  //declare array for holding the photoresistor measurement values
+  
   int photoresistor_analog_readings[6];
   
-  //fill the array
+  // Read the photoresistor pins
   photoresistor_analog_readings[0] = analogRead(A0);
   photoresistor_analog_readings[1] = analogRead(A1);
   photoresistor_analog_readings[2] = analogRead(A2);

  photoresistor_analog_readings[4] = analogRead(A4);
  photoresistor_analog_readings[5] = analogRead(A5);
  
  //Loop through the photoresistor readings
  for(int i=0;i<6;i++){
    //print 1 to serial and write LED high if black line
    if(photoresistor_analog_readings[i] < THRESHOLDS[i]){
      Serial.print("1 ");
      digitalWrite(i+2,HIGH);
    }
    //print 0 to serial and write LED low otherwise
    else {
      Serial.print("0 ");
      digitalWrite(i+2,LOW);
    }
  }
  //Create a new line
  Serial.print("\n");
  
  //wait a 30 miliseconds

  pinMode(A4,INPUT);
  pinMode(A5,INPUT);
  
  // Initialize LED pins
  pinMode(2,OUTPUT);
  pinMode(3,OUTPUT);
  pinMode(4,OUTPUT);
