RotaryRGBLed

#define CLK 2
#define DT 3
#define R 9
#define G 10
#define B 11


int currentLedValue = 0;
int currentStateCLK;
int lastStateCLK;
String currentDir ="";
int currentLedPin;

void setup()
{

  pinMode(CLK,INPUT);
  pinMode(DT,INPUT);
  pinMode(R,OUTPUT);
  pinMode(G,OUTPUT);
  pinMode(B,OUTPUT);

  Serial.begin(9600);

currentLedPin = 9;
  lastStateCLK = digitalRead(CLK);
}

void loop()
{
  currentStateCLK = digitalRead(CLK);

  if (currentStateCLK != lastStateCLK  && currentStateCLK == 1)
	{
    if (digitalRead(DT) != currentStateCLK)
    {
      currentLedValue = currentLedValue - 5;
      currentDir ="CCW";
    }
    else
    {
      currentLedValue = currentLedValue + 5;
      currentDir ="CW";
    }

  if (currentLedValue > 255)
  {
    currentLedValue = 0;
    analogWrite (currentLedPin, currentLedValue);
    if (currentLedPin == 9)
    {
      currentLedPin = 10;
    }
    else if (currentLedPin == 10)
    {
      currentLedPin = 11;
    }
    else if (currentLedPin == 11)
    {
      currentLedPin = 9;
    }
  }

  if (currentLedValue < 0)
  {
    currentLedValue = 255;
     if (currentLedPin == 9)
    {
      currentLedPin = 11;
    }
    else if (currentLedPin == 11)
    {
      currentLedPin = 10;
    }
    else if (currentLedPin == 10)
    {
      currentLedPin = 9;
    }
  }

    Serial.print("Direction: ");
    Serial.print(currentDir);
    Serial.print(" | Led Value: ");
    Serial.println(currentLedValue);
    analogWrite (currentLedPin, currentLedValue);
  }

  lastStateCLK = currentStateCLK;


}