const int LED_PIN = 13;

unsigned long previousMillis = 0;
const unsigned long intervalMs = 1000; // 1000 ms = 1 second

// Function to convert milliseconds to seconds
float msToSeconds(unsigned long ms) {
  return ms / 1000.0;
}

void setup() {
  pinMode(LED_PIN, OUTPUT);
  Serial.begin(9600);
}

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

  // Check if 1 second has passed
  if (currentMillis - previousMillis >= intervalMs) {
    previousMillis = currentMillis;

    digitalWrite(LED_PIN, !digitalRead(LED_PIN)); // Toggle LED

    Serial.print("Time in milliseconds: ");
    Serial.print(currentMillis);
    Serial.print(" | Time in seconds: ");
    Serial.println(msToSeconds(currentMillis));
  }
}