void setup() {
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(4, OUTPUT);
  pinMode(0, OUTPUT);
  pinMode(2, OUTPUT);

  delay(3000);
  digitalWrite(4, LOW);
  digitalWrite(0, LOW);
  digitalWrite(2, LOW);

  delay(1000);
  digitalWrite(4, HIGH);
  delay(1000);
  digitalWrite(4, LOW);

  delay(1000);
  digitalWrite(0, HIGH);
  delay(1000);
  digitalWrite(0, LOW);
  
  delay(1000);
  digitalWrite(2, HIGH);
  delay(1000);
  digitalWrite(2, LOW);
  
  //kedip1
  digitalWrite(4, HIGH);
  digitalWrite(0, HIGH);
  digitalWrite(2, HIGH);
  delay(700);
  digitalWrite(4, LOW);
  digitalWrite(0, LOW);
  digitalWrite(2, LOW);
  delay(700);

  // Kedip 2
  digitalWrite(4, HIGH);
  digitalWrite(0, HIGH);
  digitalWrite(2, HIGH);
  delay(700);
  digitalWrite(4, LOW);
  digitalWrite(0, LOW);
  digitalWrite(2, LOW);
  delay(700);

  // Kedip 3
  digitalWrite(4, HIGH);
  digitalWrite(0, HIGH);
  digitalWrite(2, HIGH);
  delay(700);
  digitalWrite(4, LOW);
  digitalWrite(0, LOW);
  digitalWrite(2, LOW);
  delay(700);

 }

void loop() {
  digitalWrite(4, HIGH);
  digitalWrite(0, LOW);
  digitalWrite(2, LOW);
  delay(5000);
  
  digitalWrite(0,HIGH);
  digitalWrite(4, LOW);
  digitalWrite(2, LOW);
  delay(3000);

  digitalWrite(2, HIGH);
  digitalWrite(4, LOW);
  digitalWrite(0, LOW);
  delay(7000);

}