This
Project Digital Calendar using Microcontroller is an advanced digital
calendar, which displays the Date, Day and Month over the LCD display.
The system has a battery backup so that it can run over all the time
even during the power failure.
LCD
is provided to display the day, date, month and year. All the above
systems are controlled by the Microcontroller. The microcontroller reads
the time value from RTC continuously and displays the time value on LCD
display.
RTC uses a 3V Lithium battery so that it runs on the battery
even in power failures. RTC runs perfectly for almost 1000 years. The
DS1307 has a built-in power-sense circuit that detects power failures
and automatically switches to the backup supply. Timekeeping operation
continues while the part operates from the backup supply.
The
DS1307 is a low-power clock/calendar with 56 bytes of battery-backed
SRAM. The clock/calendar provides seconds, minutes, hours, day, date,
month, and year information. The date at the end of the month is
automatically adjusted for months with fewer than 31 days, including
corrections for leap year.
SOFTWARE AND HARDWARE TOOLS:
Software Tools:
- Keil compiler
- Orcad.
Hardware Tools:
- Microcontroller AT89S52.
- RTC
- LCD