// Define the LED pin
const int ledPin = 13;  // GPIO 2 for ESP32

void setup() {
  // Initialize the LED pin as an output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // Turn the LED on
  digitalWrite(ledPin, HIGH);
  delay(4000);  // Wait for 1000 milliseconds (1 second)

  // Turn the LED off
  digitalWrite(ledPin, LOW);
  delay(1500);  // Wait for 1000 milliseconds (1 second)
}