 directly under sensor 5 or was last seen by sensor 5 before being lost.
 */
 
-ZumoReflectanceSensorArray reflectance;
+ZumoReflectanceSensorArray reflectanceSensors;
 
 // Define an array for holding sensor values.
 #define NUM_SENSORS 6

  // print the calibration maximum values measured when emitters were on
  for (byte i = 0; i < NUM_SENSORS; i++)
  {
    Serial.print(reflectance.calibratedMaximumOn[i]);
    Serial.print(' ');
  }
  Serial.println();

  // read calibrated sensor values and obtain a measure of the line position.
  // Note: the values returned will be incorrect if the sensors have not been properly
  // calibrated during the calibration phase.
  unsigned int position = reflectanceSensors.readLine(sensorValues);

  // To get raw sensor values instead, call:  
  //reflectanceSensors.read(sensorValues);

  for (byte i = 0; i < NUM_SENSORS; i++)
  {
