Getting Started With DS3231 RTC Module - Interface DS3231 Module With Arduino Uno

You may ask, what is the need of an external module for managing time when Arduino itself has a clock built-in? Well, the clock inside Arduino resets every time you upload a new code or disconnect the power. ARDUINO DS3231 RTC BASED DIGITAL CLOCK Arduino Uno DS3231 RTC Module 16x2 LCD Module Breadboard Jumper Wires All Products Links -