int LEDMERAH = 13;
int TOMBOL = 2;
bool statustombol = 0;

void setup() {
  pinMode(LEDMERAH, OUTPUT);
    pinMode(TOMBOL, INPUT);
      Serial.begin(115200);
      }

      void loop() {
        statustombol = digitalRead(TOMBOL);
          Serial.println(statustombol);
            if (statustombol == 1) {
                digitalWrite(LEDMERAH, HIGH);
                  }
                    else {
                        digitalWrite(LEDMERAH, LOW);
                          }
                          }