// код для Arduino, который будет генерировать звук частотой 800 Гц, 
// используя команду tone(), и кодировать фразу "всем привет. это маяк. 73!" Морзе на русском языке:

// Пины для подключения пьезоэлемента
int speakerPin = 9;

// Задержка между сигналами Морзе
int dotDelay = 200;
int dashDelay = dotDelay * 3;
int charDelay = dotDelay * 7;

// Функция для генерации тонового сигнала
void playTone(int frequency, int duration) {
  tone(speakerPin, frequency, duration);
  delay(duration);
}

// Функция для кодирования символов Морзе
void playMorse(char morseChar) {
  switch (morseChar) {
    case 'а':
    case 'А':
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      break;
    case 'б':
    case 'Б':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case 'в':
    case 'В':
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case 'г':
    case 'Г':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case 'д':
    case 'Д':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case 'е':
    case 'Е':
      playTone(800, dotDelay);
      break;
    case 'ж':
    case 'Ж':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      break;
    case 'з':
    case 'З':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case 'и':
    case 'И':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case 'й':
    case 'Й':
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case 'к':
    case 'К':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      break;
    case 'л':
    case 'Л':
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case 'м':
    case 'М':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case 'н':
    case 'Н':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case 'о':
    case 'О':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case 'п':
    case 'П':
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case 'р':
    case 'Р':
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case 'с':
    case 'С':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case 'т':
    case 'Т':
      playTone(800, dashDelay);
      break;
    case 'у':
    case 'У':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      break;
    case 'ф':
    case 'Ф':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case 'х':
    case 'Х':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case 'ц':
    case 'Ц':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case 'ч':
    case 'Ч':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case 'ш':
    case 'Ш':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case 'щ':
    case 'Щ':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case 'ъ':
    case 'Ъ':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case 'ы':
    case 'Ы':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case 'ь':
    case 'Ь':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      break;
    case 'э':
    case 'Э':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case 'ю':
    case 'Ю':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case 'я':
    case 'Я':
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      break;
    case '0':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case '1':
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case '2':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case '3':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case '4':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      break;
    case '5':
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case '6':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case '7':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case '8':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case '9':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case '.':
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      break;
    case ',':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case ':':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      break;
    case ';':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case '-':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      break;
    case '(':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      break;
    case ')':
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case '\'':
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      break;
    case '!':
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      playTone(800, dotDelay);
      playTone(800, dotDelay);
      playTone(800, dashDelay);
      playTone(800, dashDelay);
      break;
    case ' ':
      delay(charDelay);
      break;
    default:
      break;
  }
}

void setup() {
  pinMode(speakerPin, OUTPUT);
}

void loop() {
  // Фраза: "всем привет. это маяк. 73!"
  const char* morsePhrase = "всем привет. это маяк. 73!";
  
  int phraseLength = strlen(morsePhrase);
  for (int i = 0; i < phraseLength; i++) {
    char currentChar = tolower(morsePhrase[i]);
    playMorse(currentChar);
    delay(dotDelay);
  }

  delay(charDelay * 3);  // Пауза между повторениями фразы
}