// ini program blinking Led buatan saya

const in ledPin =27;
const in buttonPin=21;

void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT);
}

void loop() {
  if(digitalRead(buttonPin)==HIGH){
    digitalWrite(ledPin, HIGH);
    Serial.println("Nyala");
  }
   else{
     digitalWrite(ledPin, LOW);
    Serial.println("Mati");

   }
 )