Designing a Real-Time Clock (RTC) using an Arduino is a useful project for timekeeping and timestamping in various applications. You can use a dedicated RTC module like the DS3231 or DS1307, which ...

Connect the SDA pin on the RTC module to Pin 25 (A4/D18) on the Arduino Uno/Nano. Connect the SCL pin on the RTC module to Pin 24 (A5/D19) on the Arduino Uno/Nano.

Although ready-made real-time clock (RTC) modules for microcontroller projects are available in every online shop, an inspired electronics hobbyist would rather put together something from a few ...