Color Mixer and DiscoPot

Description
Components
1x Arduino
1x Breadboard
3x LED lights (1 each red, blue, green)
7x Wires
3x Potentiometers
3x 220 ohm resistors
1x Macbook Pro
1x Lampshade lined with Foil
 
Code
I set up the circuit by adding 3 potentiometers, and then used the code given to us to change the colors using the potentiometer. I now have sea-green and blood-orange colors blended in when I use my diffuser. Additionally, I modified the blinking code such that turning the potentiometers modifies the rate of blinking. I call this my 'disco pot' and I tested it with sound effects. 
Part 1

/*

* "Coffee-cup" Color Mixer:

* Code for mixing and reporting PWM-mediated color

* Assumes Arduino 0004 or higher, as it uses Serial.begin()-style communication 

* 

* Control 3 LEDs with 3 potentiometers

* If the LEDs are different colors, and are directed at diffusing surface (stuck in a

*   a Ping-Pong ball, or placed in a paper coffee cup with a cut-out bottom and 

*   a white plastic lid), the colors will mix together.

*

* When you mix a color you like, stop adjusting the pots.

* The mix values that create that color will be reported via serial out.

*

* Standard colors for light mixing are Red, Green, and Blue, though you can mix 

*   with any three colors; Red + Blue + White would let you mix shades of red, 

*   blue, and purple (though no yellow, orange, green, or blue-green.)

*

* Put 220 Ohm resistors in line with pots, to prevent circuit from 

*   grounding out when the pots are at zero

*/

// Analog pin settings

int aIn = 0;    // Potentiometers connected to analog pins 0, 1, and 2

int bIn = 1;    //   (Connect power to 5V and ground to analog ground)

int cIn = 2;  

// Digital pin settings

int aOut = 9;   // LEDs connected to digital pins 9, 10 and 11

int bOut = 10;  //   (Connect cathodes to digital ground)

int cOut = 11;  

// Values

int aVal = 0;   // Variables to store the input from the potentiometers

int bVal = 0;  

int cVal = 0;  

// Variables for comparing values between loops

int i = 0;            // Loop counter

int wait = (1000);    // Delay between most recent pot adjustment and output

int checkSum     = 0; // Aggregate pot values

int prevCheckSum = 0;

int sens         = 3; // Sensitivity theshold, to prevent small changes in 

                      // pot values from triggering false reporting

// FLAGS

int PRINT = 1; // Set to 1 to output values

int DEBUG = 1; // Set to 1 to turn on debugging output

void setup()

{

  pinMode(aOut, OUTPUT);   // sets the digital pins as output

  pinMode(bOut, OUTPUT);   

  pinMode(cOut, OUTPUT); 

  Serial.begin(9600);     // Open serial communication for reporting

}

void loop()

{

  i += 1; // Count loop

  aVal = analogRead(aIn) / 4;  // read input pins, convert to 0-255 scale

  bVal = analogRead(bIn) / 4; 

  cVal = analogRead(cIn) / 4;  

  analogWrite(aOut, aVal);    // Send new values to LEDs

  analogWrite(bOut, bVal);

  analogWrite(cOut, cVal);

  if (i % wait == 0)                // If enough time has passed...

  {    

    checkSum = aVal+bVal+cVal;      // ...add up the 3 values.

    if ( abs(checkSum - prevCheckSum) > sens )   // If old and new values differ 

                                                  // above sensitivity threshold

    {

      if (PRINT)                    // ...and if the PRINT flag is set...

      {

        Serial.print("A: ");        // ...then print the values.

        Serial.print(aVal);         

        Serial.print("\t"); 

        Serial.print("B: ");        

        Serial.print(bVal);

        Serial.print("\t");

        Serial.print("C: ");                

        Serial.println(cVal); 

        PRINT = 0;

      }

    }  

    else

    {

      PRINT = 1;  // Re-set the flag   

    } 

    prevCheckSum = checkSum;  // Update the values

    if (DEBUG)   // If we want debugging output as well...

    {

      Serial.print(checkSum);

      Serial.print("<=>");

      Serial.print(prevCheckSum);

      Serial.print("\tPrint: ");

      Serial.println(PRINT);

    }

  }

}

Part 2 - DiscoPot (Optional)

//Analog Pin Settings

int aIn = 0;    // Potentiometers connected to analog pins 0, 1, and 2

int bIn = 1;    //   (Connect power to 5V and ground to analog ground)

int cIn = 2;

// Digital pin settings

int aOut = 9;   // LEDs connected to digital pins 9, 10 and 11

int bOut = 10;  //   (Connect cathodes to digital ground)

int cOut = 11;

// Values

int aVal = 0;   // Variables to store the input from the potentiometers

int bVal = 0; 

int cVal = 0;

void setup() {

pinMode(aOut, OUTPUT);   // sets the digital pins as output

pinMode(bOut, OUTPUT);  

pinMode(cOut, OUTPUT);

Serial.begin(9600);     // Open serial communication for reporting

}

void loop() {

aVal = analogRead(aIn);   // read the value from the sensor:

bVal = analogRead(bIn);   // read the value from the sensor:

cVal = analogRead(cIn);   // read the value from the sensor:

digitalWrite(aOut, HIGH);  // turn the bOut on

digitalWrite(bOut, HIGH);  // turn the bOut on

digitalWrite(cOut, HIGH);  // turn the cOut on

delay(aVal);       // stop the program for <aVal> milliseconds:

digitalWrite(aOut, LOW);  // turn the bOut off:    

delay(aVal);     // stop the program for for <aVal> milliseconds:  

delay(bVal);       // stop the program for <bVal> milliseconds:

digitalWrite(bOut, LOW);  // turn the bOut off:    

delay(bVal);     // stop the program for for <bVal> milliseconds: 

delay(cVal);       // stop the program for <cVal> milliseconds:

digitalWrite(cOut, LOW);  // turn the cOut off:    

delay(cVal);     // stop the program for for <cVal> milliseconds:      

}