// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files.
// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
// *********/

// Pin connected to the LED
const int ledPins[] = {2, 5, 11, 12, 15};
// Time interval between actions (in milliseconds)
const int actionInterval = 50; // 1 second

void setup() {

  // Set pins 0 to 15 as OUTPUT and set them to LOW
  const int ledPins[] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17};
  for (int i = 0; i < sizeof(ledPins) / sizeof(ledPins[0]); i++) {
    pinMode(ledPins[i], OUTPUT);
    digitalWrite(ledPins[i], HIGH);
}

  randomSeed(analogRead(0)); // Seed the random number generator
}

void toggleRandomLED() {
  // Select a random LED pin
  int randomIndex = random(0, sizeof(ledPins) / sizeof(ledPins[0]));
  
  // Toggle the selected LED state
  digitalWrite(ledPins[randomIndex], !digitalRead(ledPins[randomIndex]));
}

void loop() {
  // Toggle a random LED every actionInterval milliseconds
  toggleRandomLED();
  delay(actionInterval);
}