#include <LiquidCrystal_I2C.h>
#include <RTClib.h> 
//--#include <Wire.h>   

#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4
#define runLED 13
LiquidCrystal_I2C myLCD(I2C_ADDR, LCD_COLUMNS, LCD_LINES);
RTC_DS1307 myRTC;
void setup() {
  pinMode(runLED, OUTPUT);
   // Init
  myLCD.init();
  myLCD.backlight();
  myRTC.begin();
//----- RTC Current Time Setting Command ----
// RTC.adjust(DateTime(2022,9,30,18,13,40));
//-- myRTC.adjust(DateTime(F(__DATE__), F(__TIME__)));
  // Print something
  myLCD.setCursor(3, 0);  myLCD.print("Welcome to IoT!");
  myLCD.setCursor(2, 1);  myLCD.print("For Smart Farming");
  myLCD.setCursor(0, 2);  myLCD.print("with Wokwi Simulator");
  myLCD.setCursor(7, 3);  myLCD.print("Enjoy!");
  delay(1000);
  myLCD.clear();
}
 DateTime now;
void getDateTime(void)
{  
  DateTime now = myRTC.now(); 
  myLCD.setCursor(0,0); myLCD.print("DATE: ");
  myLCD.print(now.year()); myLCD.print("/"); 
  myLCD.print(now.month()); myLCD.print("/"); myLCD.print(now.day());
  myLCD.setCursor(0,1); myLCD.print("TIME: ");
  myLCD.print(now.hour()); myLCD.print(":"); myLCD.print(now.minute());
  myLCD.print(":"); myLCD.print(now.second());
}
unsigned long NowTime,PrevTime;
unsigned char Cx = 0;

void loop() {
  
  NowTime = millis();
  if(NowTime >= (PrevTime + 100))
  {
    if(Cx==0) digitalWrite(runLED, HIGH);
    else if(Cx==3) digitalWrite(runLED, LOW); 
    //------
    if(Cx==10) 
    {
      Cx = 0;
      getDateTime();
    }
    else Cx++;
    PrevTime = NowTime;
  }  
}