In some microcontrollers have inbuilt RTC while others requires interfacing. Many systems such as IBM pc come with RTC chip on mother board.RTC chip uses an internal battery which keeps time and date even when the power is off. The real time clock (RTC) is widely used device that provides accurate time and date for many applications. Using an RTC, you can keep track of long timelines, even if you reprogram your microcontroller or a power plug. It also displays Date of the month, Month, Day of the week also with leap year compensation valid up to 2100.Ī Real Time Clock (RTC) is basically just like a watch – it runs on a battery and keeps time for you even when there is a power outage. This project is to display ‘REAL TIME’ using microcontroller P89V51RD2 as well as RTC IC DS1307 such that it gives information related to Hours, Minutes, and Seconds.
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