#define RED 13 
#define GREEN 11
#define BLUE 10
#define RGB 1

void setup() {
  // put your setup code here, to run once:

  pinMode (RED, OUTPUT);
  pinMode (GREEN, OUTPUT);
  pinMode (BLUE, OUTPUT);
  pinMode (RGB, OUTPUT);
  digitalWrite(RGB, HIGH);

}

void loop() {
  // put your main code here, to run repeatedly:

  digitalWrite(RED, LOW);
  digitalWrite(GREEN, HIGH);
  digitalWrite(BLUE, HIGH);
  delay(1000);

  digitalWrite(GREEN, LOW);
  digitalWrite(RED, HIGH);
  delay(1000);

  digitalWrite(BLUE, LOW);
  digitalWrite(GREEN, HIGH);
  delay(1000);

}