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.
Fingerprint door lock project Kit
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