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

#define DS1307_ADDRESS 0x68

LiquidCrystal_I2C lcd(0x27, 20, 2); // set the LCD address to 0x27 for a 16 chars and 2 line display

int count = 0, last_count = -1;

void setup() {
  Serial.begin(115200);
  Serial.println("Hello");

  Wire.begin();

  lcd.init();
  lcd.backlight();
  lcd.print("Serial counter Example");
  delay(1000);
}

void loop() {
  Wire.beginTransmission(DS1307_ADDRESS);
  Wire.write(0);
  Wire.endTransmission();
  if (Wire.requestFrom(DS1307_ADDRESS, 7) == 7) {
    lcd.clear();
    int sec=bcdtodec(wire.read());
    Serial.print(sec);
    Serial.print(" Seconds, ");
    lcd.setCursor(0,0);
    lcd.print("Seconds : ");
    lcd.print(sec);

    
    int minutes=bcdtodec(wire.read());
    Serial.print(minutes);
    Serial.print(" minutes, ");
    lcd.setCursor(0,1);
    lcd.print("MINUTES : ");
    lcd.print(minutes);

    int hours=bcdtodec(wire.read());
    Serial.print(hours);
    Serial.print(" hours, ");
    lcd.setCursor(0,2);
    lcd.print("HOURS : ");
    lcd.print(hours);



  }
  else {
    Serial.println(F("Failed to get RTC date and time"));
  };
  delay(1000);
}

byte bcdToDec(byte val) {
  return ( (val/16*10) + (val%16) );
}