int kuning = 9;
int hijau = 10;
int putih = 8;

void setup()
{
pinMode(putih, OUTPUT);
pinMode(hijau, OUTPUT);
pinMode(kuning, OUTPUT);



}
void loop()
{
digitalWrite(putih, HIGH);
delay (2000);
digitalWrite(putih, LOW);
delay (10);
digitalWrite(hijau, HIGH);
delay (2000);
digitalWrite(hijau, LOW);
delay (10);
digitalWrite(kuning, HIGH);
delay (2000);
digitalWrite(kuning, LOW);
delay (10);
}