void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(14, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(15, OUTPUT);
  pinMode(4, OUTPUT);

}

void loop() {
digitalWrite(13, HIGH);
digitalWrite(2, HIGH);
delay(5000);
digitalWrite(13, LOW);
digitalWrite(2, LOW);
digitalWrite(12,HIGH);
digitalWrite(4, HIGH);
delay(5000);
digitalWrite(12,LOW);
digitalWrite(4, LOW);
digitalWrite(14,HIGH);
digitalWrite(15, HIGH);
delay(5000);
digitalWrite(14,LOW);
digitalWrite(15, LOW);

  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}