const int ledPin =LED_BUILTIN;  // Onboard LED pin f

unsigned long previousMillis = 0;
const long interval = 3000;  // 3 second interval

bool ledState = LOW;

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(115200);  // Debugging via Serial Monitor
  Serial.println("ESP32-S2 LED Blink Debugging Started");
}

void loop() {
  unsigned long currentMillis = millis();

  if (currentMillis - previousMillis >= interval) {
    previousMillis = currentMillis;

    // Toggle LED
    ledState = !ledState;
    digitalWrite(ledPin, ledState);

    // Print debug message
    if (ledState) {
      Serial.println("LED ON");
    } else {
      Serial.println("LED OFF");
    }
  }
}