int BTijo = 1;
int BTkuning = 2;
int BTmerah = 3;
int USkuning = 5;

void setup() {
  // put your setup code here, to run once:
pinMode(BTijo, OUTPUT);
pinMode(BTkuning, OUTPUT);
pinMode(BTmerah, OUTPUT);
pinMode(USkuning, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(BTijo, HIGH);
delay(5000);
digitalWrite(BTijo, LOW);
delay(100);
digitalWrite(BTkuning, HIGH);
delay(2000);
digitalWrite(BTkuning, LOW);
delay(100);
digitalWrite(BTmerah, HIGH);
delay(5000);
digitalWrite(BTmerah, LOW);
delay(100);
digitalWrite(USkuning, HIGH);
delay(2000);
digitalWrite(USkuning, LOW);
delay(100);
}