Description The RTC Module uses a crystal oscillator to output signals at regular intervals. It also has a Built-In battery which acts as a backup for the RTC module in case if the power supply interrupts to prevent resetting of the module. the module is capable of counting seconds, minutes, hours, days, weeks, months, and years. Arduino uses the I2C communication protocol to send data to the LCD display, which we are using here to display the time. The display updates every second to tell the most accurate time since the module is much accurate to tell the time. The module is capable of running for more than 5 years continuously without affecting the count in time. this is possible because of the in-built cell.
