DS3231 RTC Tutorial

In this Project, we will see about how to interface DS3231 RTC Module with Arduino.

Circuit Diagram:

Arduino Code:

rtc_lcd_code.ino

//This Code is Developed by Sdev
//Follow Us Here : https://youtube.com/sdevelectronics

#include <DS3231.h>
#include <LiquidCrystal.h>

DS3231  rtc(SDA, SCL);
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);

void setup() {
  rtc.begin();
  lcd.begin(16, 2);
}

void loop() {
  lcd.setCursor(0, 0);
  lcd.print("Time:  ");
  lcd.print(rtc.getTimeStr());

  lcd.setCursor(0, 1);
  lcd.print("Date: ");
  lcd.print(rtc.getDateStr());
  delay (1000);
}

rtc_led_control_code.ino

//This Code is Developed by Sdev
//Follow Us Here : https://youtube.com/sdevelectronics

#include <DS3231.h>
#include <LiquidCrystal.h>

DS3231  rtc(SDA, SCL);
LiquidCrystal lcd(2, 3, 4, 5, 6, 7);

void setup() {
  rtc.begin();
  lcd.begin(16, 2);
  pinMode(13, OUTPUT);
}

void loop() {
  lcd.setCursor(0, 0);
  lcd.print("Time:  ");
  lcd.print(rtc.getTimeStr());
  lcd.setCursor(0, 1);
  lcd.print("Date: ");
  lcd.print(rtc.getDateStr());

  String current_time = rtc.getTimeStr();
  if (current_time.equals("02:29:00")) {
    digitalWrite(13, HIGH);
    delay(1000);
    digitalWrite(13, LOW);
  }
  delay (1000);
}

Library Used:

1. DS3231 - http://www.rinkydinkelectronics.com/library.php?id=73

Youtube Video Tutorial:

https://youtu.be/SyKpOJ-PyYU

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You can get the all the required files (like Circuit Diagram, Arduino.ino file, Libraries Used, and others) for the project  in ZIP format and much more...