#define SPEAKER_PIN 7

const int dotDuration = 250;
const int dashDuration = 3 * dotDuration;

int notes[] = {
 1318, 1318, 1318, 1046, 1318, 1568, 784,
 1046, 784, 659, 880, 987, 932, 880, 784,
 1318, 1568, 1750, 1396, 1568, 1318, 1046, 1174, 987,
 1046, 784, 659, 880, 987, 932, 880,
 784, 1318, 1568, 1750, 1396, 1568, 1318, 1046, 1174, 987,
 1568, 1480, 1396, 1244, 1318, 830, 880, 1046, 880, 1046, 1174,
 0, 1568, 1480, 1396, 1244, 1318, 2093, 2093, 2093,
 1568, 1480, 1396, 1244, 1318, 830, 880, 1046, 880, 1046, 1174, 1244, 1174, 1046, 
};

int times[] = {
 150, 300, 150, 150, 300, 600, 600,
 450, 150, 300, 300, 150, 150, 300, 210,
 210, 150, 300, 150, 150, 300, 150, 150, 450,
 450, 150, 300, 300, 150, 150, 300,
 210, 210, 150, 300, 150, 150, 300, 150, 150, 450,
 150, 150, 150, 300, 150, 150, 150, 150, 150, 150, 150,
 0, 150, 150, 150, 300, 150, 300, 150, 600,
 150, 150, 150, 300, 150, 150, 150, 150, 150, 150, 150, 300, 450, 600,
};

int delays[] = {
 150, 300, 300, 150, 300, 600, 600,
 450, 450, 450, 300, 300, 150, 300, 210,
 210, 150, 300, 150, 300, 300, 150, 150, 450,
 450, 450, 450, 300, 300, 150, 300,
 210, 210, 150, 300, 150, 300, 300, 150, 150, 600,
 150, 150, 150, 300, 300, 150, 150, 300, 150, 150, 150,
 300, 150, 150, 150, 300, 300, 300, 150, 600,
 150, 150, 150, 300, 300, 150, 150, 300, 150, 150, 450, 450, 450, 1200,
};

void setup() {
  pinMode(SPEAKER_PIN, OUTPUT);

  //Завдання №1
  // char letter[] = {'.', '.', '.', '.'};

  // for (int i = 0; i < sizeof(letter); i++) {
  //   if (letter[i] == '.') {
  //     tone(SPEAKER_PIN, 1000, dotDuration);
  //     delay(dotDuration);
  //   } else if (letter[i] == '-') {
  //     tone(SPEAKER_PIN, 1000, dashDuration);
  //     delay(dashDuration);
  //   }
  //   delay(dotDuration);
  // }

  //Завдання №3
  // for (int i = 0; i < 75; i++){
  //   tone(SPEAKER_PIN, notes[i], times[i]);
  //   delay(delays[i]);
  // }
  // noTone(SPEAKER_PIN);
}

void loop() {
  //Завдання №2
  // for (int frequency = 100; frequency <= 2000; frequency += 10) {
  //   tone(SPEAKER_PIN, frequency);
  //   delay(10);
  // }

  // for (int frequency = 2000; frequency >= 100; frequency -= 10) {
  //   tone(SPEAKER_PIN, frequency);
  //   delay(10);
  // }
  // noTone(SPEAKER_PIN);
  // delay(100);

}