void setup() {
  // put your setup code here, to run once:
  pinMode(2, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(9, OUTPUT); 
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  setColor(225, 0, 0);
  delay(1000);
  setColor(0, 225, 0);
  delay(1000);
  setColor(0, 0, 225);
  delay(1000);
  setColor(225, 225, 0);
  delay(1000);
  setColor(225, 0, 225);
  delay(1000);
}

void setColor(int red, int green, int blue)
{
  if(blue ==0 && green == 0)
  {
    digitalWrite(2, HIGH);
    delay(1500);
    digitalWrite(2, LOW);
  }
  else if(red ==0 && green == 0)
  {
    digitalWrite(7, HIGH);
    delay(1500);
    digitalWrite(7, LOW);
  }
  else if(blue ==0 && red == 0)
  {
    digitalWrite(4, HIGH);
    delay(1500);
    digitalWrite(4, LOW);
  }
  else{
    analogWrite(9, red);
    analogWrite(10, green);
    analogWrite(11, blue);
    delay(1500);
    analogWrite(9, LOW);
    analogWrite(10, LOW);
    analogWrite(11, LOW);
  }
  
}