/*RELAY 3 PIN 
NO (NORMALY OPEN) = HIGH
NC (NORMALY CLOSED) = LOW
*/

#define relay 2 //INPUT DARI RELAY

void setup() {
  Serial.begin(115200);
  pinMode(relay, OUTPUT);
}

void loop() {
  digitalWrite(relay, HIGH);
  Serial.println("Lampu Nyala");
  delay(1000);
  digitalWrite(relay, LOW);
  Serial.println("Lampu Mati");
  delay(1000);
}