void setup() {
  Serial.begin(115200);
  Serial.println("You won't see me!");
    pinMode(2, OUTPUT);


}

void loop() {

 if(Serial.available()){
        int state = Serial.parseInt();
        
        if(state == 1){
            digitalWrite(2, HIGH);
            Serial.println("Led Hidup");
        }
        
if(state == 2){
            digitalWrite(2, LOW);
            Serial.println("Led Mati");
            }
    }

}