//trafic LED 
//FARHAN BIMANTARA NO 11

int M1 = 3;
int M2 = 6;
int M3 = 7;
int M4 = 10;
int K1 = 2;
int K2 = 5;
int K3 = 8;
int K4 = 11;
int H1 = 1;
int H2 = 4;
int H3 = 9;
int H4 = 12;
void setup() {
pinMode(M1, OUTPUT);
pinMode(M2, OUTPUT);
pinMode(M3, OUTPUT);
pinMode(M4, OUTPUT);
pinMode(K1, OUTPUT);
pinMode(K2, OUTPUT);
pinMode(K3, OUTPUT);
pinMode(K4, OUTPUT);
pinMode(H1, OUTPUT);
pinMode(H2, OUTPUT);
pinMode(H3, OUTPUT);
pinMode(H4, OUTPUT);

}

void loop() {
  digitalWrite(H1, HIGH);
  digitalWrite(M2, HIGH);
  digitalWrite(M3, HIGH);
  digitalWrite(M4, HIGH);
  delay(3000);
  digitalWrite(H1, LOW);
  digitalWrite(M2, LOW);
  digitalWrite(M3, HIGH);
  digitalWrite(M4, HIGH);
  digitalWrite(K1, HIGH);
  delay(500);
  digitalWrite(H2, HIGH);
  digitalWrite(M1, HIGH);
  digitalWrite(M3, HIGH);
  digitalWrite(M4, HIGH);
  digitalWrite(K1, LOW);
  delay(3000);
  digitalWrite(H2, LOW);
  digitalWrite(K2, HIGH);
  digitalWrite(M4, LOW);
  delay(500);
  digitalWrite(H4, HIGH);
  digitalWrite(M1, HIGH);
  digitalWrite(M2, HIGH);
  digitalWrite(M3, HIGH);
  digitalWrite(K2, LOW);
  delay(3000);
  digitalWrite(H4, LOW);
  digitalWrite(K4, HIGH);
  digitalWrite(M3, LOW);
  delay(500);
  digitalWrite(H3, HIGH);
  digitalWrite(M1, HIGH);
  digitalWrite(M2, HIGH);;
  digitalWrite(M4, HIGH);
  digitalWrite(K4, LOW);
  delay(3000);


}