int led_red = 5;
int led_green = 2;

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

void loop() {
  digitalWrite(led_red, HIGH);
  delay(2000);

  digitalWrite(led_red, LOW);
  digitalWrite(led_green, HIGH);
  delay(2000);

  digitalWrite(led_red, HIGH);
  digitalWrite(led_green, HIGH);
  delay(500);
  digitalWrite(led_green, LOW);
  delay(500);
  digitalWrite(led_green, HIGH);
  delay(500);
  digitalWrite(led_green, LOW);
  delay(500);
  
  delay(2000);

  // digitalWrite(led_red, LOW);
  // digitalWrite(led_green, HIGH);
  // delay(2000);

  // put your main code here, to run repeatedly:
}