//======================================================================
// Adafruit Arduino - Lesson 3. RGB LED
// =====================================================================
     
int redPin   = 11;
int greenPin = 10;
int bluePin  = 9;
     
// un-comment this line if using a Common Anode LED
//#define COMMON_ANODE
     
void setup()
{
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);  
}
     
void loop()
{
  setColor(255, 0, 0);    // red
  delay(1000);
  setColor(0, 255, 0);    // green
  delay(1000);
  setColor(0, 0, 255);    // blue
  delay(1000);
  setColor(255, 255, 0);  // yellow
  delay(1000);  
  //setColor(80, 0, 80);  // purple (original code from Adafruit)
  setColor(255, 0, 255;   // magenta
  delay(1000);
  setColor(0, 255, 255);  // aqua
  delay(1000);
}
     
void setColor(int red, int green, int blue)
{
  #ifdef COMMON_ANODE
    red   = 255 - red;
    green = 255 - green;
    blue  = 255 - blue;
  #endif
  analogWrite(redPin,   red);
  analogWrite(greenPin, green);
  analogWrite(bluePin,  blue);  
}