Digital Calendar project is developed for the users to use a digital calendar. The main parts of this project are key pad, microcontroller unit and LCD display.
This Project Digital Calendar using Microcontroller is an advanced digital calendar, which displays the Date, Day, Month over the LED display. It has an 8 bit Microcontroller which runs on the Program embedded on its ROM. Separate LED's are provided for the date, day, and month. The system has an battery backup so that it can run over all the time even during the power failure.
Totally there are 31 LED's for indicating the date and 12 LED's for indicating the Month and 7 LED's to indicate the day. All the above systems are controlled by the Microcontroller. In our project we are using the popular 8 bit microcontroller AT89C2051. It is a 20 pin microcontroller.
The user can set the time, date and day using the key pad. When the user sets the timings, the settings will be displayed in the LCD display. The settings are stored in the microcontroller memory.
When the function key is turned on, the microcontroller sends data to the LCD display to display the current time, date and day.
If necessary, the user can modify the settings using the key pad. This project is very cheap and compact. Since microcontroller is used, the operations will be very accurate.

 

 

CHAPTER ONE
1.1                                          INTRODUCTION

A calendar is a system of organising days for social, religious, commercial or administrative purposes. This is done by giving names to periods of time, typically days, weeks, months and years. A date is the designation of a single, specific day within such a system. A calendar is also a physical record (often paper) of such a system. A calendar can also mean a list of planned events, such as a court calendar or a partly or fully chronological list of documents, such as a calendar of wills. Periods in a calendar (such as years and months) are usually, though not necessarily, synchronised with the cycle of the sun or the moon. The most common type of pre-modern calendar was the lunisolar calendar, a lunar calendar that occasionally adds one intercalary month to remain synchronised with the solar year over the long term.

Digital calendar is very useful projects for final year students. This project replaces the Printed Calendars. It has an Inbuilt Real Time Clock which tracks over the Real Time. It displays the day/month/year and time in hh:mms format. The time and date can be changed at any Time using the keypad. The Real Time Clock is displayed on LCD display. We can set the reminders on events or alarm at a particular time and date. We can use the LED array for larger display.

 

1.1                         OBJECTIVES OF THE PROJECT

Our objective is to create a system that consists of:

• Digital display which is flexible and scalable enough to accommodate the requirements of most calendars of the year
• a Calendar Management Tool which allows users to manage their events stored in a central repository, easily share their events with other campus calendars and customize their calendar's appearance.

1.2                               PURPOSE OF THE PROJECT
The project will display the date, month and year. In addition to this, it will also display time. We can also set the date and time.

The purpose of our project is to design a complete digital calendar which will be deployable in the campus. This calendar network should allow all campus calendars to manage and store event information in such a way that it can be easily shared with other calendars.

1.3                          SIGNIFICANCE OF THE PROJECT
You truly cannot be an organized human being unless you use a good calendar system! And if you’re still someone who likes to keep all of their appointments, activities, and reminders on a paper calendar- I highly encourage you to consider tossing out the paper and find an electronic calendar system that works for you.
One of the most beautiful things about digital calendars is that they can be synced, so you can have your calendar on your smart phone, your tablet, your laptop, as well as it can sync to your husband’s electronic calendar and your kids’ calendars. So no matter where you are- you can easily look up and see what your current appointments are for any given day. And the important people in your life can know the latest schedule and commitments too- without coming home and consulting the kitchen wall.

 1.4                             ADVANTAGES OF THE PROJECT

• Even if there is power failure, the calendar displays the right date and time that it should display, when the power is back.
•  Simplicity of the system.
• Accuracy of the system.
  

1.5                                             APPLICATIONS OF THE PROJECT
Because digital calendar is very small and inexpensive devices that enhance the popularity of product designs, they are often incorporated into all kinds of devices such as
• Cars
• Radios
• Televisions

1.6                          PROJECT WORK ORGANISATION
The various stages involved in the development of this project have been properly put into five chapters to enhance comprehensive and concise reading. In this project thesis, the project is organized sequentially as follows:
Chapter one of this work is on the introduction to a digital calendar. In this chapter, the background, significance, objective limitation and problem of a digital calendar were discussed.
Chapter two is on literature review of a digital calendar. In this chapter, all the literature pertaining to this work was reviewed.
Chapter three is on design methodology. In this chapter all the method involved during the design and construction were discussed.
Chapter four is on testing analysis. All testing that result accurate functionality was analyzed.
Chapter five is on conclusion, recommendation and references.

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