#define BUTTON 16
#define LED 12
int input;
int StatusAkhir = LOW;

void setup() {
  pinMode (LED, OUTPUT);
  pinMode(BUTTON, INPUT_PULLUP);
}

void loop() {
  // baca button
  int input = digitalRead(BUTTON);

  if (input == LOW && StatusAkhir == LOW) {
    delay(1000);
    digitalWrite(LED, HIGH);
    StatusAkhir = HIGH;
  }
  else if (input == LOW && StatusAkhir == HIGH) {
    delay(1000);
    digitalWrite(LED, LOW);
    StatusAkhir = LOW;
  }
}