#include <Arduino.h>
#include <LiquidCrystal_I2C.h>
#include <Wire.h>
#include <ESP32Time.h>

#define Sprintln(a) (Serial.println(a))
#define Sprint(a)   (Serial.print(a))

LiquidCrystal_I2C LCD = LiquidCrystal_I2C(0x27, 16,2);

//ESP32Time rtc;
ESP32Time rtc(25200);  // offset in seconds Thailand GMT+7 : 7 * 60 * 60 : 25200

                                                 // Init a Time-data structure

void setup() 
{
  Serial.begin(115200);
  
  /*******************************************/
  LCD.init();         // initial LCD on lib
  LCD.backlight();    // Blink LCD backlight on

  LCD.setCursor(0,0); // Clear LCD display
  LCD.print("Hello world");

  LCD.setCursor(0,1);
  LCD.print("Mechatronics Eng");

  delay (2000);
  /*******************************************/
  rtc.setTime(30, 10, 7, 19, 3, 2022);  // 17th Jan 2022 14:10:30
  /*******************************************/
}

void loop() 
{
  //  Serial.println(rtc.getTime("%A, %B %d %Y %H:%M:%S"));   // (String) returns time with specified format 
  // formating options  http://www.cplusplus.com/reference/ctime/strftime/

  struct tm timeinfo = rtc.getTimeStruct();
  Serial.println(&timeinfo, "%A, %B %d %Y %H:%M:%S");   //  (tm struct) Sunday, January 17 2021 07:24:38
  
  
  LCD.setCursor(0,0);
  LCD.print("Date:  ");
  LCD.print(&timeinfo, "%A");
 
  LCD.setCursor(0,1);
  LCD.print("Time: ");
  LCD.print(&timeinfo, " %H:%M:%S ");

  delay(1000);

}