Dural - color LED

/**
VCC 5V(40mA)

R   11
GND GND
G   10
**/
int redPin = 11;
int greenPin = 10;
int val = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  for(val=255;val>0;val--) {
    analogWrite(redPin, val);
    analogWrite(greenPin, 255 - val);
    Serial.println(val, DEC); // print the val on in serial monitor
    delay(30);
  }

  for(val=0;val<255;val++) {
    analogWrite(redPin, val);
    analogWrite(greenPin, 255 - val);
    Serial.println(val, DEC);
    delay(30);
  }
}