const int ledPins[] = {23, 19, 12, 14}; // Pins connected to LEDs
const int numLeds = 4; // Number of LEDs

void setup() {
  // Initialize each LED pin as an output
  for (int i = 0; i < numLeds; i++) {
    pinMode(ledPins[i], OUTPUT);
  }
}

void loop() {
  // Loop through each LED, turn it on and off
  for (int i = 0; i < numLeds; i++) {
    digitalWrite(ledPins[i], HIGH); // Turn the current LED on
    delay(1000); // Wait for a short duration to create the blinking effect
    digitalWrite(ledPins[i], LOW); // Turn the current LED off
    delay(1000); // Wait for a short duration between LEDs
  }
}