View source for ESP32: WiFi NTP TM1650 7segmen serial

 /*********
  
    I2C Device ESP32
    SDA        SDA (default is GPIO 21)
    SCL        SCL (default is GPIO 22)
    GND        GND
    VCC        usually 3.3V or 5V
    
   Get Time NTP
 *********/
 
 #include <Wire.h>
 #include <TM1650.h>
 #include <NTPClient.h>
 #include <WiFi.h>
 #include <WiFiUdp.h> 
 
 // Replace with your network credentials
 const char* ssid     = "o1";
 const char* password = "Dzaq1993!";
 char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", 
 "Wednesday", "Thursday", "Friday", "Saturday"};
 const long utcOffsetInSeconds = 25200;
 int hh, mm, ss;
 char cWaktu[5];
 
 TM1650 d;
 
 // Define NTP Client to get time
 WiFiUDP ntpUDP;
 NTPClient timeClient(ntpUDP, "id.pool.ntp.org", utcOffsetInSeconds); 
 
 void setup() {
   Serial.begin(115200); 
 
   WiFi.begin(ssid, password); 
   while ( WiFi.status() != WL_CONNECTED ) {
     delay ( 500 );
     Serial.print ( "." );
   }
   timeClient.begin();
 }
 
 void loop() {
   timeClient.update();
   hh = timeClient.getHours();
   mm = timeClient.getMinutes();
   ss = timeClient.getSeconds();
   Serial.print(daysOfTheWeek[timeClient.getDay()]);
   Serial.print(", ");
   Serial.print(hh);
   Serial.print(":");
   Serial.print(mm);
   Serial.print(":");
   Serial.println(ss);
   // Serial.println(timeClient.getFormattedTime());
   // delay(1000); 
 
   if ( hh > 9 ) {
       String temp_str = String( hh*100 + mm );
       temp_str.toCharArray(cWaktu,5);
   } else {
       String temp_str = " " + String( hh*10 + mm );
       temp_str.toCharArray(cWaktu,5);
   } 
 
   d.displayString( cWaktu ); // menampilkan waktu
   delay(500); // tunggu selama 1 detik 
 
   for (int i = 0; i<20; i++) {
     for (int j = 0; j<4; j++) {
        d.setDot(j,true);
        delay(200);
     }
     for (int j = 0; j<4; j++) {
        d.setDot(j,false);
        delay(200);
     }
   }
  
 }