ESP32 Kullanarak Namaz Vaktini LCD'ye Yazdırma Kodu Var mı?

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GadgetEfsanesi
ESP32 modülünü kullanarak günlük namaz vakitlerini bir LCD ekrana yazdırmak istiyorum. Bunun için gerekli kodları ve devre bağlantılarını paylaşabilir misiniz? Ayrıca, namaz vakitlerini nasıl hesaplayacağım veya bir API ile nasıl çekeceğim konusunda da yardım alabilir miyim?
 
Tarihe göre sırala Oylara göre sırala
Benim istedğim sd kartta 1 yıl tüm vakitleri yükleyim oradan bugünü bulup şuan saat 13.30 mesela sırada ikindi namazı var onu göstersin hatta mümkün mü bilmiyorum kalan vakti de gösterebilir mi
 
Oyla 0 Downvote
Yarın pc başına geçince kodu burdan atarım ben size.
Ekran görüntüsünü de atarım size.
 
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Rica ederim.
 
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Bağlantılar aşağıda tabloda belirtilen şekilde yapabilirsiniz:
ESP32 PinBağlantıAçıklama
GPIO21 (SDA)LCD SDA (Data)I2C veri hattı (Varsayılan ESP32 SDA)
GPIO22 (SCL)LCD SCL (Clock)I2C saat hattı (Varsayılan ESP32 SCL)
3.3VLCD VCCLCD için güç hattı
GNDLCD GNDToprak hattı

Benim elimde 2x16 LCD Ekran yoktu 4x20 LCD Ekran kullandım kodda gerekli güncellemeleri yapabilirsin yada 4x20 LCD Ekran kullanabilirsin.

Kod:

C++: 
#include <WiFi.h>
#include <WiFiUdp.h>
#include <ArduinoJson.h>
#include <ArduinoHttpClient.h>
#include <Wire.h>
#include <hd44780.h>
#include <hd44780ioClass/hd44780_I2Cexp.h>

// WiFi bilgileri
const char* ssid     = "Buraya Wifi SSID";
const char* password = "Buraya Wifi Şifresi";

// NTP Sunucusu ve zaman ayarları
const char* ntpServerName = "pool.ntp.org";
const int timeZone = 3;        // Türkiye: UTC+3
const unsigned long seventyYears = 2208988800UL;

// Namaz vakti API (HTTP)
const char* prayerHost = "api.aladhan.com";
int prayerPort = 80;
String prayerPath = "/v1/timingsByCity/13-12-2024?city=Ankara&country=TR&method=13";

// LCD nesnesi (I2C)
hd44780_I2Cexp lcd;
const int LCD_COLS = 20;
const int LCD_ROWS = 4;

WiFiUDP udp;
unsigned int localPort = 2390;

String currentDate = "Yok";
String currentTime = "Yok";
String nextPrayerName = "";
int nextPrayerRemainingMinutes = -1;

const char* trMonths[13] = {
  "", "Ocak", "Subat", "Mart", "Nisan", "Mayis", "Haziran",
  "Temmuz", "Agustos", "Eylul", "Ekim", "Kasim", "Aralik"
};

int timeToMinutes(String timeStr) {
  // Namaz vakitleri "HH:MM" formatında gelir
  int idx = timeStr.indexOf(':');
  if (idx < 0) return -1;
  int hour = timeStr.substring(0, idx).toInt();
  int min  = timeStr.substring(idx+1).toInt();
  return hour * 60 + min;
}

void findNextPrayer(String nowTime, String fajr, String sunrise, String dhuhr, String asr, String maghrib, String isha) {
  int nowMinutes = timeToMinutes(nowTime);
  if (nowMinutes < 0) {
    nextPrayerRemainingMinutes = -1;
    return;
  }

  int fajrM     = timeToMinutes(fajr);
  int dhuhrM    = timeToMinutes(dhuhr);
  int asrM      = timeToMinutes(asr);
  int maghribM  = timeToMinutes(maghrib);
  int ishaM     = timeToMinutes(isha);

  struct Prayer {
    String name;
    int timeM;
  } prayers[5] = {
    {"Ogle",   dhuhrM},
    {"Ikindi", asrM},
    {"Aksam",  maghribM},
    {"Yatsi",  ishaM},
    {"Sabah",  fajrM}
  };

  nextPrayerName = "";
  nextPrayerRemainingMinutes = -1;

  for (int i = 0; i < 5; i++) {
    int diff = prayers[i].timeM - nowMinutes;
    if (diff > 0) {
      // En küçük pozitif farkı bul
      if (nextPrayerRemainingMinutes < 0 || diff < nextPrayerRemainingMinutes) {
        nextPrayerName = prayers[i].name;
        nextPrayerRemainingMinutes = diff;
      }
    }
  }

  if (nextPrayerRemainingMinutes < 0 && fajrM >= 0) {
    int diffNextDay = fajrM + 1440 - nowMinutes;
    nextPrayerName = "Sabah";
    nextPrayerRemainingMinutes = diffNextDay;
  }
}

String getTurkishDateFromCurrent() {
  if (currentDate == "Yok") return "Yok";
 
  int firstDash = currentDate.indexOf('-');
  int secondDash = currentDate.lastIndexOf('-');
  if (firstDash < 0 || secondDash < 0 || firstDash == secondDash) {
    return "Yok";
  }

  String yearStr = currentDate.substring(0, firstDash);
  String monthStr = currentDate.substring(firstDash+1, secondDash);
  String dayStr = currentDate.substring(secondDash+1);

  int day = dayStr.toInt();
  int month = monthStr.toInt();
  int year = yearStr.toInt();

  if (month < 1 || month > 12) return "Yok";
  return String(day) + "." + String(month) + "." + String(year);
}

void sendNTPpacket(const char *address) {
  byte packetBuffer[48];
  memset(packetBuffer, 0, 48);
  packetBuffer[0] = 0b11100011;
  packetBuffer[1] = 0;  
  packetBuffer[2] = 6;
  packetBuffer[3] = 0xEC;
  packetBuffer[12] = 49;
  packetBuffer[13] = 0x4E;
  packetBuffer[14] = 49;
  packetBuffer[15] = 52;
  udp.beginPacket(address, 123);
  udp.write(packetBuffer, 48);
  udp.endPacket();
}

void getNTPTime() {
  udp.begin(localPort);
  sendNTPpacket(ntpServerName);
  delay(1000);

  int cb = udp.parsePacket();
  if (!cb) {
    Serial.println("NTP yanit yok");
    return;
  }
  byte packetBuffer[48];
  udp.read(packetBuffer, 48);

  unsigned long highWord = word(packetBuffer[40], packetBuffer[41]);
  unsigned long lowWord = word(packetBuffer[42], packetBuffer[43]);
  unsigned long secsSince1900 = highWord << 16 | lowWord;
  unsigned long epoch = secsSince1900 - seventyYears;

  epoch += timeZone * 3600;

  int year = 1970;
  unsigned long dayCount = epoch / 86400UL;
  unsigned long secondsInDay = epoch % 86400UL;
  int hour = secondsInDay / 3600;
  int minute = (secondsInDay % 3600) / 60;
  int second = secondsInDay % 60;

  while (true) {
    bool leap = (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
    int daysInYear = leap ? 366 : 365;
    if (dayCount >= (unsigned long)daysInYear) {
      dayCount -= daysInYear;
      year++;
    } else {
      break;
    }
  }

  static const int monthDays[12] = {31,28,31,30,31,30,31,31,30,31,30,31};
  int month = 0;
  bool leap = (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
  for (int i = 0; i < 12; i++) {
    int daysInMonth = monthDays[i];
    if (i == 1 && leap) daysInMonth = 29;
    if ((int)dayCount >= daysInMonth) {
      dayCount -= daysInMonth;
      month++;
    } else {
      break;
    }
  }

  int day = dayCount + 1;
  month += 1;

  char dateStr[11];
  snprintf(dateStr, sizeof(dateStr), "%04d-%02d-%02d", year, month, day);
  currentDate = dateStr;

  char timeStr[9];
  snprintf(timeStr, sizeof(timeStr), "%02d:%02d", hour, minute);
  currentTime = timeStr; // Saniyeye gerek yok, HH:MM yeterli

  Serial.print("NTP ile Alinan Zaman: ");
  Serial.print(currentDate);
  Serial.print(" ");
  Serial.println(currentTime);
}

void setup() {
  Serial.begin(115200);
  Wire.begin();
 
  lcd.begin(LCD_COLS, LCD_ROWS);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("WiFi Baglaniliyor...");

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
  }
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("WiFi baglandi!");
  delay(1000);
}

void loop() {
  getNTPTime();
  String turkishDate = getTurkishDateFromCurrent();

  // Namaz vakitlerini al
  {
    WiFiClient prayerClient;
    HttpClient pClient(prayerClient, prayerHost, prayerPort);
    pClient.get(prayerPath);
    int prayerStatusCode = pClient.responseStatusCode();
    Serial.print("Namaz API Status: ");
    Serial.println(prayerStatusCode);
    if (prayerStatusCode == 200) {
      String prayerResponse = pClient.responseBody();
      Serial.println("Namaz Response:");
      Serial.println(prayerResponse);

      DynamicJsonDocument prayerDoc(8192);
      DeserializationError pError = deserializeJson(prayerDoc, prayerResponse);
      if (!pError) {
        String fajr    = (const char*)prayerDoc["data"]["timings"]["Fajr"];
        String sunrise = (const char*)prayerDoc["data"]["timings"]["Sunrise"];
        String dhuhr   = (const char*)prayerDoc["data"]["timings"]["Dhuhr"];
        String asr     = (const char*)prayerDoc["data"]["timings"]["Asr"];
        String maghrib = (const char*)prayerDoc["data"]["timings"]["Maghrib"];
        String isha    = (const char*)prayerDoc["data"]["timings"]["Isha"];

        if (currentTime != "Yok") {
          findNextPrayer(currentTime, fajr, sunrise, dhuhr, asr, maghrib, isha);
        } else {
          nextPrayerName = "";
          nextPrayerRemainingMinutes = -1;
        }
      } else {
        Serial.println("Namaz JSON ayristirma hatasi");
      }
    } else {
      Serial.println("Namaz API hatasi veya baglanti sorunu");
    }
  }

  // LCD Güncelle
  lcd.clear();
  // Satır 1: Konum
  lcd.setCursor(0,0);
  lcd.print("Konum: Ankara TR");

  // Satır 2: Tarih
  lcd.setCursor(0,1);
  lcd.print("Tarih: ");
  lcd.print(turkishDate);

  // Satır 3: Saat
  lcd.setCursor(0,2);
  lcd.print("Saat : ");
  lcd.print(currentTime);

  // Satır 4: Namaz bilgisi
  lcd.setCursor(0,3);
  if (nextPrayerRemainingMinutes >= 0) {
    lcd.print(nextPrayerName);
    lcd.print(" (");
    lcd.print(nextPrayerRemainingMinutes);
    lcd.print(" dk)");
  } else {
    lcd.print("Namaz yok");
  }

  delay(60000);
}

@netweb SD Karta ileride bir ezan sesi ekleyip namaz vakitlerinde Ezan okutabilirsin.
 
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netweb' Alıntı:
Çok teşekkür ederim akşama eve gidince kodu yükleyip deneyeceğim.çok sevaba girdiniz benim lcd ekran 16x2 onu nasıl koda eklemeliyim
Genişletmek için tıkla ...
Kodu 16x2 Lcd ekran için güncelledim.

C++: 
#include <WiFi.h>
#include <WiFiUdp.h>
#include <ArduinoJson.h>
#include <ArduinoHttpClient.h>
#include <Wire.h>
#include <hd44780.h>
#include <hd44780ioClass/hd44780_I2Cexp.h>

// WiFi Bilgileri
const char* ssid     = "Buraya wifi ssid";
const char* password = "Buraya wifi parolası";

// NTP Sunucusu ve zaman ayarları
const char* ntpServerName = "pool.ntp.org";
const int timeZone = 3;        // Türkiye: UTC+3
const unsigned long seventyYears = 2208988800UL;

// Namaz vakti API (HTTP)
const char* prayerHost = "api.aladhan.com";
int prayerPort = 80;
String prayerPath = "/v1/timingsByCity/13-12-2024?city=Ankara&country=TR&method=13";

// LCD nesnesi (16x2)
hd44780_I2Cexp lcd;
const int LCD_COLS = 16;
const int LCD_ROWS = 2;

WiFiUDP udp;
unsigned int localPort = 2390;

String currentDate = "Yok";  // YYYY-MM-DD
String currentTime = "Yok";  // HH:MM
String nextPrayerName = "";
int nextPrayerRemainingMinutes = -1;

const char* trMonths[13] = {
  "", "Ocak", "Subat", "Mart", "Nisan", "Mayis", "Haziran",
  "Temmuz", "Agustos", "Eylul", "Ekim", "Kasim", "Aralik"
};

int timeToMinutes(String timeStr) {
  int idx = timeStr.indexOf(':');
  if (idx < 0) return -1;
  int hour = timeStr.substring(0, idx).toInt();
  int min  = timeStr.substring(idx+1).toInt();
  return hour * 60 + min;
}

void findNextPrayer(String nowTime, String fajr, String sunrise, String dhuhr, String asr, String maghrib, String isha) {
  int nowMinutes = timeToMinutes(nowTime);
  if (nowMinutes < 0) {
    nextPrayerRemainingMinutes = -1;
    return;
  }

  int fajrM     = timeToMinutes(fajr);
  int dhuhrM    = timeToMinutes(dhuhr);
  int asrM      = timeToMinutes(asr);
  int maghribM  = timeToMinutes(maghrib);
  int ishaM     = timeToMinutes(isha);

  struct Prayer {
    String name;
    int timeM;
  } prayers[5] = {
    {"Ogle",   dhuhrM},
    {"Ikindi", asrM},
    {"Aksam",  maghribM},
    {"Yatsi",  ishaM},
    {"Sabah",  fajrM}
  };

  nextPrayerName = "";
  nextPrayerRemainingMinutes = -1;

  for (int i = 0; i < 5; i++) {
    int diff = prayers[i].timeM - nowMinutes;
    if (diff > 0) {
      if (nextPrayerRemainingMinutes < 0 || diff < nextPrayerRemainingMinutes) {
        nextPrayerName = prayers[i].name;
        nextPrayerRemainingMinutes = diff;
      }
    }
  }

  if (nextPrayerRemainingMinutes < 0 && fajrM >= 0) {
    int diffNextDay = fajrM + 1440 - nowMinutes;
    nextPrayerName = "Sabah";
    nextPrayerRemainingMinutes = diffNextDay;
  }
}

// Tarih formatını DD.MM.YYYY şeklinde döndürür
String getDotSeparatedDate() {
  if (currentDate == "Yok") return "Yok";
 
  int firstDash = currentDate.indexOf('-');
  int secondDash = currentDate.lastIndexOf('-');
  if (firstDash < 0 || secondDash < 0 || firstDash == secondDash) {
    return "Yok";
  }

  String yearStr = currentDate.substring(0, firstDash);       // YYYY
  String monthStr = currentDate.substring(firstDash+1, secondDash); // MM
  String dayStr = currentDate.substring(secondDash+1);        // DD

  return dayStr + "." + monthStr + "." + yearStr; // DD.MM.YYYY
}

void sendNTPpacket(const char *address) {
  byte packetBuffer[48];
  memset(packetBuffer, 0, 48);
  packetBuffer[0] = 0b11100011;
  packetBuffer[1] = 0;    
  packetBuffer[2] = 6;  
  packetBuffer[3] = 0xEC;
  packetBuffer[12] = 49;
  packetBuffer[13] = 0x4E;
  packetBuffer[14] = 49;
  packetBuffer[15] = 52;
  udp.beginPacket(address, 123);
  udp.write(packetBuffer, 48);
  udp.endPacket();
}

void getNTPTime() {
  udp.begin(localPort);
  sendNTPpacket(ntpServerName);
  delay(1000);

  int cb = udp.parsePacket();
  if (!cb) {
    Serial.println("NTP yanit yok");
    return;
  }
  byte packetBuffer[48];
  udp.read(packetBuffer, 48);

  unsigned long highWord = word(packetBuffer[40], packetBuffer[41]);
  unsigned long lowWord = word(packetBuffer[42], packetBuffer[43]);
  unsigned long secsSince1900 = highWord << 16 | lowWord;
  unsigned long epoch = secsSince1900 - seventyYears;

  epoch += timeZone * 3600;

  int year = 1970;
  unsigned long dayCount = epoch / 86400UL;
  unsigned long secondsInDay = epoch % 86400UL;
  int hour = secondsInDay / 3600;
  int minute = (secondsInDay % 3600) / 60;
 
  while (true) {
    bool leap = (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
    int daysInYear = leap ? 366 : 365;
    if (dayCount >= (unsigned long)daysInYear) {
      dayCount -= daysInYear;
      year++;
    } else {
      break;
    }
  }

  static const int monthDays[12] = {31,28,31,30,31,30,31,31,30,31,30,31};
  int month = 0;
  bool leap = (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0);
  for (int i = 0; i < 12; i++) {
    int daysInMonth = monthDays[i];
    if (i == 1 && leap) daysInMonth = 29;
    if ((int)dayCount >= daysInMonth) {
      dayCount -= daysInMonth;
      month++;
    } else {
      break;
    }
  }

  int day = dayCount + 1;
  month += 1;

  char dateStr[11];
  snprintf(dateStr, sizeof(dateStr), "%04d-%02d-%02d", year, month, day);
  currentDate = dateStr;

  char timeStr[6];
  snprintf(timeStr, sizeof(timeStr), "%02d:%02d", hour, minute);
  currentTime = timeStr;

  Serial.print("NTP ile Alinan Zaman: ");
  Serial.print(currentDate);
  Serial.print(" ");
  Serial.println(currentTime);
}

void setup() {
  Serial.begin(115200);
  Wire.begin();
 
  lcd.begin(LCD_COLS, LCD_ROWS);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("WiFi Baglaniliyor...");

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
  }
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("WiFi baglandi!");
  delay(1000);
}

void loop() {
  getNTPTime();
  String dotDate = getDotSeparatedDate(); // DD.MM.YYYY format

  // Namaz vakitlerini al
  {
    WiFiClient prayerClient;
    HttpClient pClient(prayerClient, prayerHost, prayerPort);
    pClient.get(prayerPath);
    int prayerStatusCode = pClient.responseStatusCode();
    Serial.print("Namaz API Status: ");
    Serial.println(prayerStatusCode);
    if (prayerStatusCode == 200) {
      String prayerResponse = pClient.responseBody();
      Serial.println("Namaz Response:");
      Serial.println(prayerResponse);

      DynamicJsonDocument prayerDoc(8192);
      DeserializationError pError = deserializeJson(prayerDoc, prayerResponse);
      if (!pError) {
        String fajr    = (const char*)prayerDoc["data"]["timings"]["Fajr"];
        String sunrise = (const char*)prayerDoc["data"]["timings"]["Sunrise"];
        String dhuhr   = (const char*)prayerDoc["data"]["timings"]["Dhuhr"];
        String asr     = (const char*)prayerDoc["data"]["timings"]["Asr"];
        String maghrib = (const char*)prayerDoc["data"]["timings"]["Maghrib"];
        String isha    = (const char*)prayerDoc["data"]["timings"]["Isha"];

        if (currentTime != "Yok") {
          findNextPrayer(currentTime, fajr, sunrise, dhuhr, asr, maghrib, isha);
        } else {
          nextPrayerName = "";
          nextPrayerRemainingMinutes = -1;
        }

      } else {
        Serial.println("Namaz JSON ayristirma hatasi");
      }
    } else {
      Serial.println("Namaz API hatasi veya baglanti sorunu");
    }
  }

  // LCD Güncelle
  // 1. Satır: "DD.MM.YYYY HH:MM"
  // "13.12.2024" (10 char) + " " (1 char) + "HH:MM"(5 char) = 16 char tam sığıyor
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print(dotDate);
  lcd.print(" ");
  lcd.print(currentTime);

  // 2. Satır: Namaz bilgisi
  // "Ank" (3 char) + " " (1 char) + kısaltılmış namaz adı (4 char) + " " (1 char) + "10dk"(4 char)
  // Toplam 3+1+4+1+4=13 char
  // Eğer namaz yok ise "Ank Namazyok" = 3+1+9=13 char

  lcd.setCursor(0,1);
  if (nextPrayerRemainingMinutes >= 0) {
    // Namaz ismini kısalt (ilk 4 char)
    String prayerShort = nextPrayerName.substring(0,4);
    lcd.print("Ank ");
    lcd.print(prayerShort);
    lcd.print(" ");
    lcd.print(nextPrayerRemainingMinutes);
    lcd.print("dk");
  } else {
    lcd.print("Ank Namazyok");
  }

  delay(60000);
}
 
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