#include <Arduino.h>
#define pin_led 12

void hidupkan_led()
{
  digitalWrite(pin_led, HIGH);
  Serial.println("Led menyala");
}

void setup()
{
  Serial.begin(9600);
  pinMode(pin_led,OUTPUT);
  digitalWrite(pin_led,LOW);
  Serial.println("Led mati");

  hidupkan_led();
}

void loop()
{

}