// Blinking 4 LEDs Program for ESP32

const int ledPins[] = {13, 12, 2, 4}; // Array of LED pins

void setup() {
  for (int i = 0; i < 4; i++) {
    pinMode(ledPins[i], OUTPUT); // Set each LED pin as an output
  }
}

void loop() {
  for (int i = 0; i < 4; i++) {
    digitalWrite(ledPins[i], HIGH); // Turn the current LED on
    delay(500); // Wait for 500 milliseconds
    digitalWrite(ledPins[i], LOW); // Turn the current LED off
  }
  delay(1000); // Wait for 1 second before repeating
}