Arduino Real Time Clock

A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time.

Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic device which needs to keep accurate time. A common RTC used in single-board computers is the Maxim Integrated DS1307.

Components Required

• Arduino UNO
• DS1307 RTC Module
• 16×2 LCD Display
• Breadboard
• Connecting wires
• Power supply

Working of Arduino Real Time Clock DS1307 Interface

A simple project where Arduino UNO is interfaced with DS1307 Real Time Clock is implemented here. In this project, we will be programming the DS1307 RTC with current date and time and see whether it actually keeps that data even if the power supply to Arduino is removed.

A special library called “RTClib” is used in the programming. 

In order to upload the data and time into the DS1307 RTC IC, we have used a feature available in the RTClib library, where the Arduino will upload the date and time from the computer while uploading the code.