#define plb 19
#define plm 18
#define plk 5
#define ppb 15
int nilai = 0;
void setup() 
{
pinMode(plb, OUTPUT);
pinMode(plm, OUTPUT);
pinMode(plk, OUTPUT);
pinMode(ppb, INPUT);
}

void loop() {

  if(digitalRead(ppb) == HIGH) {
    delay(500);
    digitalWrite(plb, HIGH);
    delay(500);
    digitalWrite(plb, LOW);
    delay(500);
    digitalWrite(plm, HIGH);
    delay(500);
    digitalWrite(plm, LOW);
    delay(500);
    digitalWrite(plk, HIGH);
    delay(500);
    digitalWrite(plk, LOW);
  }
  else{
    digitalWrite(plb, LOW);
    digitalWrite(plm, LOW);
    digitalWrite(plk, LOW);

  }
 
 }