MICROCONTROLLER BASED ELECTRONIC CALENDAR USING RTC AND I2C PROTOCOL
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
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