  three 10 kilohm resistors
  3 220 ohm resistors
  3 photoresistors
- red green aand blue colored gels
+ red green and blue colored gels
  
  Created 13 September 2012
+ Modified 14 November 2012
  by Scott Fitzgerald
  Thanks to Federico Vanzati for improvements
 

  but analogWrite() uses 8 bits. You'll want to divide your 
  sensor readings by 4 to keep them in range of the output. 
  */
  redValue = redsensorValue/4;
  greenValue = greensensorValue/4;
  blueValue = bluesensorValue/4;  

  //  print out the mapped values  
  Serial.print("Mapped sensor Values \t red: ");

  Serial.begin(9600); 

  // set the digital pins as outputs
  pinMode(greenLEDPin,OUTPUT);
  pinMode(redLEDPin,OUTPUT);
  pinMode(blueLEDPin,OUTPUT);
}

void loop() {
  // Read the sensors first:
  
  // read the value from the red-filtered photoresistor:
  redSensorValue = analogRead(redSensorPin);
  // give the ADC a moment to settle
  delay(5);
  // read the value from the green-filtered photoresistor:
  greenSensorValue = analogRead(greenSensorPin);
  // give the ADC a moment to settle
  delay(5);
  // read the value from the blue-filtered photoresistor:
  blueSensorValue = analogRead(blueSensorPin);  

  // print out the values to the serial monitor  
  Serial.print("raw sensor Values \t red: ");
  Serial.print(redSensorValue);
  Serial.print("\t green: ");
  Serial.print(greenSensorValue);
  Serial.print("\t Blue: ");
  Serial.println(blueSensorValue);

  /*
  In order to use the values from the sensor for the LED, 
