void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(14, OUTPUT);
  pinMode(27, OUTPUT);
  pinMode(26, OUTPUT);
  pinMode(25, OUTPUT);
  pinMode(33, OUTPUT);
  pinMode(32, OUTPUT);
  pinMode(5, OUTPUT); 
  pinMode(4, OUTPUT);
  pinMode(15, OUTPUT);
  pinMode(2, OUTPUT);
          
  Serial.println("Hello, ESP32!");
}

void loop() {
  digitalWrite(13,1);
  digitalWrite(12,0);
  // put your main code here, to run repeatedly:
  delay(1000); // this speeds up the simulation
  digitalWrite(12,1);
  digitalWrite(13,0);
  delay(1000);
  digitalWrite(12,0);
  digitalWrite(14,1);
  delay(1000);
  digitalWrite(14,0);
  digitalWrite(27,1);
  delay(1000);
  digitalWrite(27,0);
  digitalWrite(26,1);
  delay(1000);
  digitalWrite(26,0);
  digitalWrite(25,1);
  delay(1000);
  digitalWrite(25,0);
  digitalWrite(33,1);
  delay(1000);
  digitalWrite(33,0);
  digitalWrite(32,1);
  delay(1000);
  digitalWrite(32,0);
  digitalWrite(5,1);
  delay(1000);
  digitalWrite(5,0);
  digitalWrite(4,1);
  delay(1000);
  digitalWrite(4,0);
  digitalWrite(15,1);
  delay(1000);
  digitalWrite(15,0);
  digitalWrite(2,1);
  delay(1000);
  digitalWrite(2,0);
  delay(1000);
}