// ESP32 Blink Internal LED (Connected to GPIO2)

#define LED_PIN 2 // GPIO2 is where the internal LED is connected on most ESP32 boards

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

void loop() {
  digitalWrite(LED_PIN, HIGH); // Turn on the LED
  delay(1000); // Wait for 1 second (1000 milliseconds)
  digitalWrite(LED_PIN, LOW); // Turn off the LED
  delay(1000); // Wait for 1 second (1000 milliseconds)
}