roomavailability.ino

#include <WiFi.h>
#include <HTTPClient.h>
#include <SPI.h>
#include <MFRC522.h>
#include <ArduinoJson.h>
#include <iostream>
#include <stdio.h>
#include <string.h>

#define NOTE_B0  31
#define NOTE_C1  33
#define NOTE_CS1 35
#define NOTE_D1  37
#define NOTE_DS1 39
#define NOTE_E1  41
#define NOTE_F1  44
#define NOTE_FS1 46
#define NOTE_G1  49
#define NOTE_GS1 52
#define NOTE_A1  55
#define NOTE_AS1 58
#define NOTE_B1  62
#define NOTE_C2  65
#define NOTE_CS2 69
#define NOTE_D2  73
#define NOTE_DS2 78
#define NOTE_E2  82
#define NOTE_F2  87
#define NOTE_FS2 93
#define NOTE_G2  98
#define NOTE_GS2 104
#define NOTE_A2  110
#define NOTE_AS2 117
#define NOTE_B2  123
#define NOTE_C3  131
#define NOTE_CS3 139
#define NOTE_D3  147
#define NOTE_DS3 156
#define NOTE_E3  165
#define NOTE_F3  175
#define NOTE_FS3 185
#define NOTE_G3  196
#define NOTE_GS3 208
#define NOTE_A3  220
#define NOTE_AS3 233
#define NOTE_B3  247
#define NOTE_C4  262
#define NOTE_CS4 277
#define NOTE_D4  294
#define NOTE_DS4 311
#define NOTE_E4  330
#define NOTE_F4  349
#define NOTE_FS4 370
#define NOTE_G4  392
#define NOTE_GS4 415
#define NOTE_A4  440
#define NOTE_AS4 466
#define NOTE_B4  494
#define NOTE_C5  523
#define NOTE_CS5 554
#define NOTE_D5  587
#define NOTE_DS5 622
#define NOTE_E5  659
#define NOTE_F5  698
#define NOTE_FS5 740
#define NOTE_G5  784
#define NOTE_GS5 831
#define NOTE_A5  880
#define NOTE_AS5 932
#define NOTE_B5  988
#define NOTE_C6  1047
#define NOTE_CS6 1109
#define NOTE_D6  1175
#define NOTE_DS6 1245
#define NOTE_E6  1319
#define NOTE_F6  1397
#define NOTE_FS6 1480
#define NOTE_G6  1568
#define NOTE_GS6 1661
#define NOTE_A6  1760
#define NOTE_AS6 1865
#define NOTE_B6  1976
#define NOTE_C7  2093
#define NOTE_CS7 2217
#define NOTE_D7  2349
#define NOTE_DS7 2489
#define NOTE_E7  2637
#define NOTE_F7  2794
#define NOTE_FS7 2960
#define NOTE_G7  3136
#define NOTE_GS7 3322
#define NOTE_A7  3520
#define NOTE_AS7 3729
#define NOTE_B7  3951
#define NOTE_C8  4186
#define NOTE_CS8 4435
#define NOTE_D8  4699
#define NOTE_DS8 4978
#define REST 0

// Kısa bir kutlama melodisi 
int successMelody[] = {
  NOTE_E4, 8, NOTE_E4, 8, NOTE_F4, 8, NOTE_G4, 8,
  NOTE_G4, 8, NOTE_F4, 8, NOTE_E4, 8, NOTE_D4, 8,
  NOTE_C4, 8, NOTE_C4, 8, NOTE_D4, 8, NOTE_E4, 8,
  NOTE_E4, 8, NOTE_D4, 8, NOTE_D4, 4,
  
  NOTE_E4, 8, NOTE_E4, 8, NOTE_F4, 8, NOTE_G4, 8,
  NOTE_G4, 8, NOTE_F4, 8, NOTE_E4, 8, NOTE_D4, 8,
  NOTE_C4, 8, NOTE_C4, 8, NOTE_D4, 8, NOTE_E4, 8,
  NOTE_D4, 8, NOTE_C4, 8, NOTE_C4, 4
};


// Hata sesi 
int errorMelody[] = {
  NOTE_A3, 4, NOTE_A3, 4, NOTE_A3, 4,
  NOTE_F3, 8, NOTE_C4, 16, NOTE_A3, 4,
  NOTE_F3, 8, NOTE_C4, 16, NOTE_A3, 2,
  
  NOTE_E4, 4, NOTE_E4, 4, NOTE_E4, 4,
  NOTE_F4, 8, NOTE_C4, 16, NOTE_A3, 4,
  NOTE_F3, 8, NOTE_C4, 16, NOTE_A3, 2
};


int successNotes = sizeof(successMelody) / sizeof(successMelody[0]) / 2;
int errorNotes = sizeof(errorMelody) / sizeof(errorMelody[0]) / 2;

int tempo = 180;
int buzzer = 11;

int wholenote = (60000 * 4) / tempo;
int divider = 0, noteDuration = 0;

const char* ssid = "sky-lab";
const char* password = "sky-lab-harika";
#define SS_PIN 15
#define RST_PIN 22
MFRC522 mfrc522(SS_PIN, RST_PIN);

#define BUZZER_PIN 4
String previous_uid = "";

void setup() {
  Serial.begin(115200);
  SPI.begin();
  mfrc522.PCD_Init();
  pinMode(BUZZER_PIN, OUTPUT);
  Serial.println("Wi-Fi'ye bağlanılıyor...");
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nWi-Fi'ye bağlandı.");
  Serial.print("IP Adresi: ");
  Serial.println(WiFi.localIP());
}

void playMelody(int* melody, int notes) {
  for (int thisNote = 0; thisNote < notes * 2; thisNote = thisNote + 2) {
    divider = melody[thisNote + 1];
    if (divider > 0) {
      noteDuration = (wholenote) / divider;
    } else if (divider < 0) {
      noteDuration = (wholenote) / abs(divider);
      noteDuration *= 1.5;
    }
    tone(BUZZER_PIN, melody[thisNote], noteDuration * 0.9);
    delay(noteDuration);
    noTone(BUZZER_PIN);
  }
}

void loop() {
  if (!mfrc522.PICC_IsNewCardPresent() || !mfrc522.PICC_ReadCardSerial()) {
    delay(500);
    return;
  }
  String rfid_uid = "";
  for (byte i = 0; i < mfrc522.uid.size; i++) {
    rfid_uid += String(mfrc522.uid.uidByte[i] < 0x10 ? "0" : "") + String(mfrc522.uid.uidByte[i], HEX);
  }
  rfid_uid.toUpperCase();
  Serial.print("RFID UID: ");
  Serial.println(rfid_uid);
  
  if (rfid_uid != previous_uid) {
    previous_uid = rfid_uid;
    const char* c = rfid_uid.c_str();
    const char* server = "https://oda.yildizskylab.com/api/room/passCard/";
    char serverName[100];
    strcpy(serverName, server);
    strcat(serverName, c);

    if (WiFi.status() == WL_CONNECTED) {
      HTTPClient http;
      http.begin(serverName);
      StaticJsonDocument<200> jsonDoc;
      jsonDoc["room"] = rfid_uid;
      String jsonData;
      serializeJson(jsonDoc, jsonData);
      http.addHeader("Content-Type", "application/json");
      int httpResponseCode = http.POST(jsonData);
      if (httpResponseCode > 0) {
        String payload = http.getString();
        Serial.print("HTTP Yanıt Kodu: ");
        Serial.println(httpResponseCode);
        Serial.print("Yanıt: ");
        Serial.println(payload);
        if (httpResponseCode == 200) {
          playMelody(successMelody, successNotes);
        } else {
          playMelody(errorMelody, errorNotes);
        }
      } else {
        playMelody(errorMelody, errorNotes);
      }
      http.end();
    }
  }
  delay(1000); 
}