Arduino: RTC and LCD

Sumber: http://microcontrollerslab.com/real-time-clock-ds1307-interfacing-arduino/

Source:

#include <Wire.h>
#include “RTClib.h”
#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
RTC_DS1307 RTC;

void setup () {
   Serial.begin(9600);
   Wire.begin();
   RTC.begin();
   lcd.begin(16, 2);
   
   pinMode(8,OUTPUT);
  
   if (! RTC.isrunning()) {
      Serial.println(“RTC is NOT running!”);
      // following line sets the RTC to the date & time this sketch was compiled
      RTC.adjust(DateTime(__DATE__, __TIME__));
      }
}

void loop () {
   DateTime now = RTC.now();
   lcd.setCursor(0, 0);
   lcd.print(now.day(), DEC);
   lcd.print(‘/’);
   lcd.print(now.month(), DEC);
   lcd.print(‘/’);
   lcd.print(now.year(), DEC);
   lcd.print(‘ ‘);
   lcd.setCursor(0, 1);
   if (now.hour()<10)
      lcd.print(‘0’);
   lcd.print(now.hour(), DEC);
   lcd.print(‘:’);
   if (now.minute()<10)
      lcd.print(‘0’);
   lcd.print(now.minute(), DEC);
   lcd.print(‘:’);
   if (now.second()<10)
      lcd.print(‘0’);
   lcd.print(now.second(), DEC);
   delay(1000);
}

RTCLib

Bisa di download dari

https://github.com/adafruit/RTClib

Referensi

• http://microcontrollerslab.com/real-time-clock-ds1307-interfacing-arduino/