The most popular RTC for the Arduino is the DS1307. However, it does have some drawbacks, the most notable of which is that its operating voltage is 5v, which means it cannot be used with 3.3v ...

This replica uses LEDs driven by an Arduino Nano and a real-time clock. Since the RTC gives hours from 0-23 and minutes and seconds from 0-59, a couple of shift registers and some modulo ...

In this article you will learn how to make a digital clock using Arduino and the DS1307 RTC IC. What is DS1307 IC actually ... In my case, I am using a 20 x 4 LCD screen. When I first trying the new ...

While the main supply can power the RTC, you may need to use a separate supply for this device to ensure it functions as intended even when the Arduino is turned off or disconnected from the main ...

The build is of course based off an Arduino and Gameduino shield. A real-time clock is always needed for a satellite tracker, so a DS1307 RTC is thrown into the mix. The satellite data is stored ...