void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(33, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  kedip();
  Serial.println("Kedap Kedip");
}

void kedip() {
  digitalWrite(33, HIGH);
  delay(1000); // this speeds up the simulation
  digitalWrite(33, LOW);
  delay(1000); // this speeds up the simulation
}