Rainbow Arduino: Part 2

So after making the LED light up in rainbow colors, I decided to make it more interactive. I combined my code with this one from the Arduino site. 


I'm using this photoresistor to adjust the colors of the RGB LED with the same wiring from the last code. 

I had to sketch a little graph in my planner to figure this out since I am not a programming genius.

as you can see, finals ended on the 15th

If you are interested in the code: 

// These constants won't change:

const int sensorPin = A0;    // pin that the sensor is attached to

const int redPin = 3;

const int greenPin = 5;

const int bluePin = 6;

const int power = 9;

// variables:

int sensorValue = 0;         // the sensor value

int sensorMin = 1023;        // minimum sensor value

int sensorMax = 0;           // maximum sensor value

int red = 0;

int green = 0;

int blue = 0;

void setup() {

// set the pins as output:

  pinMode(redPin, OUTPUT); 

  pinMode(greenPin, OUTPUT); 

  pinMode(bluePin, OUTPUT); 

  pinMode(power,OUTPUT);

  

 // turn on LED to signal the start of the calibration period:

pinMode(13,OUTPUT);

digitalWrite(13,HIGH);

// calibrate during the first five seconds 

  while (millis() < 5000) {

    sensorValue = analogRead(sensorPin);

    Serial.println(sensorValue);

    // record the maximum sensor value

    if (sensorValue > sensorMax) {

      sensorMax = sensorValue;

      Serial.println(sensorMax);  }

    // record the minimum sensor value

    if (sensorValue < sensorMin) {

      sensorMin = sensorValue;

      Serial.println(sensorMin); }

 }

  digitalWrite(13,LOW);

  // signal the end of the calibration period 

}

void loop() {

  // read the sensor:

  sensorValue = analogRead(sensorPin);

  // apply the calibration to the sensor reading

  sensorValue = map(sensorValue, sensorMin, sensorMax, 0, 255);

  // in case the sensor value is outside the range seen during calibration

  sensorValue = constrain(sensorValue, 0, 255);

  // fade the LED using the calibrated value:

if(sensorValue<127) {

  red= (-2*sensorValue)+255;  // decreasing the red

  green = 2*sensorValue;   // increasing the green

  analogWrite(redPin, red);

  analogWrite(greenPin, green); }

if(sensorValue>127 {

  green= (-2*sensorValue)+510;  // decreasing the green

  blue = 2*(sensorValue) - 255;   // increasing the blue

  analogWrite(greenPin, green);

  analogWrite(bluePin, blue); }

}