#define led1 13 // pin 13 
#define led2 12 // pin 12 
#define led3 11 // pin 11
#define led4 10 // pin 10
#define led5 9 // pin 9 
#define led6 8 // pin 8

void setup() {
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  pinMode(led5, OUTPUT);
  pinMode(led6, OUTPUT );
}
void loop() {
  digitalWrite(led1, HIGH); //lampu merah menyala
  delay(350);
  digitalWrite(led1, LOW); //lampu merah mati
  digitalWrite(led2, HIGH); //lampu jingga menyala
  delay(300);
  digitalWrite(led2, LOW); //lampu jingga mati
  digitalWrite(led3, HIGH); //lampu kuning hidup
  delay(250);
  digitalWrite(led3, LOW); //lampu kuning mati
  digitalWrite(led4, HIGH); //lampu hijau menyala
  delay(200);
  digitalWrite(led4, LOW); //lampu hijau mati
  digitalWrite(led5, HIGH); //lampu biru menyala
  delay(150);
  digitalWrite(led5, LOW); //lampu biru mati
  digitalWrite(led6, HIGH); //lampu ungu hidup
  delay(100);
  digitalWrite(led6, LOW); //lampu ungu mati

}