#define LED_1 12

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Rangkaian LED Sederhana");
  pinMode(LED_1, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(LED_1, HIGH);
  Serial.println("LED 1 Menyala");
  delay(2000);

  digitalWrite(LED_1, LOW);
  Serial.println("LED 1 Mati");
  delay(2000);
}