#include <Esp32WifiManager.h>
#include <WiFiUdp.h>
#include <NTPClient.h>               
#include <ESP32Time.h>                 
#include <LiquidCrystal.h>  
LiquidCrystal lcd(D12, D14, D4, D2, D15, D27); 


char* ssid = "ASUS";  //wifi ssid
char* password = "7CY5SQ9N";   //wifi password

WiFiUDP ntpUDP;


NTPClient timeClient(ntpUDP, "asia.pool.ntp.org", 20700, 60000);

char Time[ ] = "TIME:00:00:00";
char Date[ ] = "DATE:00/00/2000";
byte last_second, second_, minute_, hour_, day_, month_;
int year_;

 

void setup() {

  Serial.begin(115200);
  lcd.begin(16, 2);                 // Initialize 16x2 LCD Display
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(Time);
  lcd.setCursor(0, 1);
  lcd.print(Date);

  WiFi.begin(ssid, password);
  Serial.print("Connecting.");

  while ( WiFi.status() != WL_CONNECTED ) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("connected");
  timeClient.begin();
}
 

void loop() {

  timeClient.update();
  unsigned long unix_epoch = timeClient.getEpochTime();    // Get Unix epoch time from the NTP server

  second_ = second(unix_epoch);
  if (last_second != second_) {
 

    minute_ = minute(unix_epoch);
    hour_   = hour(unix_epoch);
    day_    = day(unix_epoch);
    month_  = month(unix_epoch);
    year_   = year(unix_epoch);

 

    Time[12] = second_ % 10 + 48;
    Time[11] = second_ / 10 + 48;
    Time[9]  = minute_ % 10 + 48;
    Time[8]  = minute_ / 10 + 48;
    Time[6]  = hour_   % 10 + 48;
    Time[5]  = hour_   / 10 + 48;

 

    Date[5]  = day_   / 10 + 48;
    Date[6]  = day_   % 10 + 48;
    Date[8]  = month_  / 10 + 48;
    Date[9]  = month_  % 10 + 48;
    Date[13] = (year_   / 10) % 10 + 48;
    Date[14] = year_   % 10 % 10 + 48;

    Serial.println(Time);
    Serial.println(Date);

    lcd.setCursor(0, 0);
    lcd.print(Time);
    lcd.setCursor(0, 1);
    lcd.print(Date);
    last_second = second_;

  }
  delay(500);
}