Set an alarm on the DS3231 clock. Enable the Arduino's main loop to ignore the clock while it performs other tasks. When the alarm happens, the DS3231 will pull the Arduino pin "low", that is, to near ...

The DS3231 RTC module operates at 3.3V. It's essential to use a level shifter or voltage divider if you're using a 5V Arduino to interface with the 3.3V DS3231 module. This is a basic example of ...

In this article you will learn how to make a digital clock using Arduino and the DS1307 RTC IC. What is DS1307 IC actually? Well, it is a Real Time Clock (RTC) IC that is simple to use, low cost and ...

This Arduino based Real time clock is a digital clock to display real time using a RTC IC DS1307 which works on I2C protocol. Real time clock means it runs even after power failure. When power is ...

By adding an Arduino compatible board, an RTC Arduino module, and a code from the EasyNixie library, users can create their own nixie clocks with relative ease.