int tombol = 2;
int led_hijau = 3;
int jumlahTekanan;

void setup() {
  // put your setup code here, to run once:
pinMode(tombol, INPUT);
pinMode(led_hijau, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
int statusTombol = digitalRead(tombol);

//perintah membuat tombol saklar
if(statusTombol==HIGH){
  jumlahTekanan++;
  delay(200);
  if(jumlahTekanan==1){
    digitalWrite(led_hijau, HIGH);
  }
 if(jumlahTekanan==2){
  digitalWrite(led_hijau, LOW);
  jumlahTekanan = 0;
 }
}

//membuat led menyala ketika ditekan dan mati ketika tombol di lepas
if(statusTombol==HIGH){
  digitalWrite(led_hijau, HIGH);
}
else{
  digitalWrite(led_hijau, LOW);
}

}