#define Red 23
#define Green 22
#define Blue 21

#define Cyan 23
#define Magenta 22
#define Yellow 21

const int redDuration = 1000;   
const int yellowDuration = 1000; 
const int greenDuration = 1000;
const int allDuration = 1000;

void setup() {
  // put your setup code here, to run once:
  pinMode(Red, OUTPUT);
  pinMode(Green, OUTPUT);
  pinMode(Blue, OUTPUT);
  // Serial.println("Contoh Program LED RGB");
}

void loop() {
  digitalWrite(Red, HIGH);
  digitalWrite(Green, LOW);
  digitalWrite(Blue, LOW);
  delay(allDuration);

  digitalWrite(Red, LOW);
  digitalWrite(Green, HIGH);
  digitalWrite(Blue, LOW);
  delay(allDuration);

  digitalWrite(Red, LOW);
  digitalWrite(Green, LOW);
  digitalWrite(Blue, HIGH);
  delay(allDuration);

  // -----------------------

  digitalWrite(Cyan, HIGH);
  digitalWrite(Magenta, LOW);
  digitalWrite(Yellow, LOW);
  delay(allDuration);
}