DESIGN AND CONSTRUCTION A MICROCONTROLLER BASED DIGITAL CLOCK WITH CALENDAR USING PIC16F877
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APPROVAL PAGE
This is to certify that the research work, "design and construction a microcontroller based digital clock with calendar using pic16f877" by ---, Reg. No. EE/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on Electrical and Electronics Engineering has been approved.
By
Engr. --- Engr. ---
Supervisor Head of Department.
Signature………………. Signature……………….
……………………………….
Engr. ---
External Invigilator
DEDICATION
This project is dedicated to Almighty God for his protection, kindness, strength over my life throughout the period and also to my --- for his financial support and moral care towards me.Also to my mentor --- for her academic advice she often gives to me. May Almighty God shield them from the peril of this world and bless their entire endeavour Amen.
ACKNOWLEDGEMENT
The successful completion of this project work could not have been a reality without the encouragement of my --- and other people. My immensely appreciation goes to my humble and able supervisor mr. --- for his kindness in supervising this project.
My warmest gratitude goes to my parents for their moral, spiritual and financial support throughout my study in this institution.
My appreciation goes to some of my lecturers among whom are Mr. ---, and Dr. ---. I also recognize the support of some of the staff of --- among whom are: The General Manager, Deputy General manager, the internal Auditor Mr. --- and the ---. Finally, my appreciation goes to my elder sister ---, my lovely friends mercy ---, ---, --- and many others who were quite helpful.
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Digital project is developed for the users to use a digital display instead of analogue. The main parts of this project are press switch, microcontroller unit and LCD display.
This Digital device was designed using Microcontroller (PIC16F877) to display digital calendar, which displays the Date, Day, Month and schedules over the LCD display. It has an 8 bit Microcontroller which runs on the Program embedded on its ROM. The system has a battery backup so that it can run over all the time even during the power failure.
The user can set the time, date, day and their schedules using the switch. 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.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
CHAPTER ONE
INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
- AIM OF THE PROJECT
- OBJECTIVE OF THE PROJECT
- PURPOSE OF THE PROJECT
- LIMITATION OF THE PROJECT
- ADVANTAGES OF THE PROJECT
- PROBLEM OF THE PROJECT
- APPLICATION OF THE PROJECT
CHAPTER TWO
LITERATURE REVIEW
- REVIEW OF AN ELECTRONIC CALENDAR
- REVIEW OF EXISTING TECHNOLOGY
- THE HISTORITICAL BACKGROUND OF THE DIGITAL CALENDAR
- REVIEW OF CALENDARING SOFTWARE
- OVERVIEW OF DIGITAL CLOCK
CHAPTER THREE
SYSTEM DESIGN
- THE SYSTEM BUILDING BLOCK
- SYSTEM CIRCUIT DIAGRAM
- SYSTEM CIRCUIT DESCRIPTION
- CONNECTION DESCRIPTION
- THE SOURCE CODE
- INTERFACING LCD WITH PIC MICROCONTROLLER
- POWER SUPPLY UNIT
CHAPTER FOUR
TESTING AND RESULTS
- CONSTRUCTION PROCEDURE AND TESTING
- INSTALLATION OF THE COMPLET DESIGN
- ASSEMBLING OF SECTIONS
- TESTING OF SYSTEM OPERATION
- DESCRIPTION OF COMPONENTS USED
CHAPTER FIVE
- CONCLUSION
- RECOMMENDATION
- REFERENCES
CHAPTER ONE
1.1 INTRODUCTION
Nowadays, so many electronics comes with digital display. A display device is an output device for presentation of information in visual form. When the input information is supplied has an electrical signal, the display is called an electronic display.
Some displays can show only digits or alphanumeric characters. They are called segment displays, because they are composed of several segments that switch on and off to give appearance of desired glyph. The segments are usually single LEDs or liquid crystals. They are mostly used in digital watches and pocket calculators.
This particular work focuses on the design of three different digital display devices – digital clock, digital calendar and digital timetable. And they described as below:
Digital clock is very useful projects for final year students. It has an Inbuilt Real Time Clock which tracks over the Real Time. It displays the time in hh:mm:ss format. The time and date can be changed at any Time using the switch. The Real Time Clock is displayed on LCD display.
A digital timing circuit (digital clock) is something we use and depend on every day. The timing circuit used in this project will be entirely hardware based. It will consist of two timing signals, a 60Hz clock pulse used as the main timing signal (multiples of 60s) and a 1kHz clock pulse used for multiplexing a 7-segment display for the clock. The 60Hz clock pulse will be divided by sixty multiple times in order to provide a pulse for seconds, minutes and hours. These pulses will be counted, stored in memory registers and then displayed to show the current time.
A calendar organizes 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.
Digital calendar is very useful projects for final year students. This project replaces the Printed Calendars. We can set the reminders on events or alarm at a particular time and date. We can use the LED array for larger display.
This device has smart application due to precisely time display and several types of reasons such as much reliable, free maintenance, portable, elegant outlook, inexpensiveness, tiny size and result accuracy. Every electronics based modern real life application in any filed is now integrated with the digital calendar to enable the user to keep time and date anywhere at any time. It is often incorporated into all kinds of devices such as transports, traffic signal, radios, televisions, standard ovens, computers, laptop, cell phones and wireless peripheral to intellect the device in the way that would be easily enticed by human mind. Regarding the demand of digital clock, this paper presents graceful design of smart digital clock in a particular way that would not only be able to display time, it has an ability to display day of a week with real time. This research shows an embedded system which is constructed through PIC 16F877A microcontroller.
1.1 AIM OF THE PROJECT
The main aim of this work is to construct a device that will digitally display set time and date. It displays the time in hh:mm:ss format while the date is in days, weeks, months and years. The system is constructed using PIC 16F877A microcontroller which is the heart of the circuit. 1.2 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
- a device that will display the time in seconds, minutes and hours. In addition to this, it will also display time. We can also set the time using the switch.
- A device that catches a person's attention and create a memorable impression very quickly, leaving the reader thinking about the advertisement after they have driven past it. Digital timetables can be used to display time of activities in the school.
The project will display the time, date, month and year. We can also set the date and time.
The purpose of our project is to design a complete digital device which will be deployable in the campus. This device will allow all campus or any other places it is applied to manage and store event information, manage their time and schedules in such a way that it can be easily shared with other calendars.
1.4 SIGNIFICANCE OF THE PROJECT
You truly cannot be an organized human being unless you use a good calendar system and time, even if you are still someone who likes to keep all of their appointments, activities, and reminders on a paper calendar.
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.
Digital clock is important in that one can have clock on your smart phone, your tablet, your laptop, as well as it can sync to your husband’s electronic clock and your kids’ clock. 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.
Some of the most prominent digital timetables are alongside class rooms; since passing students typically have little to occupy their attention; the impact of the timetable is greater. Digital timetables are often drivers' primary method of finding lecture time, exam time etc.
Keep students updated in real time with flexible messaging options.
Change copy within minutes without any printing or installation costs.
1.5 ADVANTAGES OF THE PROJECT
- Even if there is power failure, the device displays the right date, time, and schedules that it should display, when the power is back.
- Simplicity of the system.
- Accuracy of the system.
Because digital device 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
- In schools
- In worshipping centres
- Car garages, etc.
- Costs for displaying using this medium may also be significantly more than analogue means of these devices.
- It cost higher techniques and knowledge to use or maintained than the analogue or Manuel type.
1.8 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 this study. In this chapter, the background, significance, objective limitation and problem of this study were discussed.
Chapter two is on literature review of this study. 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.
5.1 CONCLUSION
At the end of this work, a microcontroller based digital clock with calendar was constructed using DS1307 with PIC16F877A. DS1307 is a popular Real Time Clock (RTC) chip from MAXIM.
Digital clock using ds1307 displays time and calendar (date) on LCD. PIC16F877A microcontroller is used to design digital clock. I2C communication protocol is used to read time and date from digital clock ds1307. PIC16F877A microcontroller is interfaced with LCD to display time and date.
5.2 RECOMMENDATION
This project is designed to be used in homes, offices or industries, even at night to know every time of the day. And should be used and maintain by a qualified personnel.
Also, adding an alarm, with setting of time, will make it more effective.
And a temperature sensor can be used to show the temperature of the surroundings.
CHAPTER TWO: The complete chapter two of “design and construction a microcontroller based digital clock with calendar using pic16f877” is available. Order full work to download. Chapter two of “design and construction a microcontroller based digital clock with calendar using pic16f877” consists of the literature review. In this chapter all the related work on “design and construction a microcontroller based digital clock with calendar using pic16f877” was reviewed.
CHAPTER THREE: The complete chapter three of “design and construction a microcontroller based digital clock with calendar using pic16f877” is available. Order full work to download. Chapter three of “design and construction a microcontroller based digital clock with calendar using pic16f877” consists of the methodology. In this chapter all the method used in carrying out this work was discussed.
CHAPTER FOUR: The complete chapter four of “design and construction a microcontroller based digital clock with calendar using pic16f877” is available. Order full work to download. Chapter four of “design and construction a microcontroller based digital clock with calendar using pic16f877” consists of all the test conducted during the work and the result gotten after the whole work
CHAPTER FIVE: The complete chapter five of design and construction of a “design and construction a microcontroller based digital clock with calendar using pic16f877” is available. Order full work to download. Chapter five of “design and construction a microcontroller based digital clock with calendar using pic16f877” consist of conclusion, recommendation and references.
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