#include "DHTesp.h"
const int DHT_PIN = 15;
const int LED_PIN = 4;
const int BUZZER_PIN = 23;
DHTesp dhtSensor;

void setup() {
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUZZER_PIN, OUTPUT);
  digitalWrite(LED_PIN, HIGH);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
    /*另外一種寫法
    tone(BUZZER_PIN, 262);
    delay(2000);
    noTone(BUZZER_PIN);
  */

  // 多音
  /*沒有用陣列的寫法
    tone(BUZZER_PIN, 262, 500);
    tone(BUZZER_PIN, 293, 250);
    tone(BUZZER_PIN, 329, 250);
    tone(BUZZER_PIN, 349, 250);
    tone(BUZZER_PIN, 392, 500);
    tone(BUZZER_PIN, 440, 250);
    tone(BUZZER_PIN, 493, 250);
    tone(BUZZER_PIN, 523, 500);
  */

  /* 1-D Array
  int TONS_SIZE = 8;
  int tons[TONS_SIZE] = {262, 293, 329, 349, 392, 440, 493, 523};
  int ton_seconds[TONS_SIZE] = {500, 250, 250, 500, 250, 250, 250, 500};
  for (int i = 0; i < TONS_SIZE; i++) {
    tone(BUZZER_PIN, tons[i], ton_seconds[i]);
  }
  */

  // 2-D Array (2x8)
  /*int TONS_SIZE = 8;
  int tons_2d[2][TONS_SIZE] = { 
                                {262, 293, 329, 349, 392, 440, 493, 523},
                                {500, 250, 250, 500, 250, 250, 250, 500} 
                              };
  for (int i = 0; i < TONS_SIZE; i++) {
    tone(BUZZER_PIN, tons_2d[0][i], tons_2d[1][i]);
  }*/

  // 2-D Array (2x8) 雙層 for
  /*int TONS_SIZE = 8;
  int tons_2d[2][TONS_SIZE] = { 
                                {262, 293, 329, 349, 392, 440, 493, 523},
                                {500, 250, 250, 500, 250, 250, 250, 500} 
                              };
  for (int i = 0; i < 1; i++) {
    for (int j = 0; j < TONS_SIZE; j++) {
      tone(BUZZER_PIN, tons_2d[i][j], tons_2d[i+1][j]);
    }
  }*/

  // 2-D Array (8x2)
  /*int TONS_SIZE = 8;
  int tons_2d_2[TONS_SIZE][2] = { 
                                {262, 500},
                                {293, 250},
                                {329, 250},
                                {349, 500},
                                {392, 250},
                                {440, 250},
                                {493, 250},
                                {523, 500}
                              };
  for (int i = 0; i < TONS_SIZE; i++) {
    tone(BUZZER_PIN, tons_2d_2[i][0], tons_2d_2[i][1]);
  }*/

  // 2-D Array (8x2) 雙層 for
  /*int TONS_SIZE = 8;
  int tons_2d_2[TONS_SIZE][2] = { 
                                {262, 500},
                                {293, 250},
                                {329, 250},
                                {349, 500},
                                {392, 250},
                                {440, 250},
                                {493, 250},
                                {523, 500}
                              };
  for (int i = 0; i < TONS_SIZE; i++) {
    for (int j = 0; j < 1; j++) {
      tone(BUZZER_PIN, tons_2d_2[i][j], tons_2d_2[i][j+1]);
    }
  }*/
}

void loop() {
  printTempAndHumidity(); // call
  delay(2000);
}

// methods
void printTempAndHumidity() {
  TempAndHumidity data = dhtSensor.getTempAndHumidity();
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");
  Serial.println("---");
}