DESIGN AND CONSTRUCTION OF A DIGITAL CLOCK


DESIGN AND CONSTRUCTION OF A DIGITAL CLOCK 

CHAPTER ONE  INTRODUCTION

The world as it stands now can be said to be digitalized in every ramification and as such, this project is aimed at looking for a way to change the way the time of the day is computed and displayed to the end-user. In this method, a microcontroller PIC16F877A is being used and this will calculate the time based on the number of the internal instruction it has executed and reflect the result in a digitalized form on a series of matrix seven segment display. The infrared signal will be the line of communication between the digital clock and the end user through which the digital clock’s time can be modified/set. Operating basically on the mains power supply, a backup battery power supply will be inculcated to provide power supply to the entire power system in the absence of the mains power supply.

AIM OF THE PROJECT To design and construct a microcontroller-based digital clock for real-time dissemination.

OBJECTIVES

To be able to calculate the time using a microcontroller (16F877A)  To be able to interface a microcontroller to sharp remote control To be able to display the date and time in a digitized form on a matrix 7 segment display

SCOPE OF STUDY This project work is to cover the following area:

Demonstrate the principle of scanning in a television system as applied to an electronic notice board. Demonstrate the principle of multiplexing in data communication as applied to an electronic notice board. Demonstrate the coding system of a bitmap image used in graphic work as applied to an electronic notice board. Description of a computer system embedded on a single chip. Features and limitations of such a computer system on a single chip. Covers the assembly language understood by the microcontrollers. Application of software compilers to microcontrollers. Interfacing microcontroller with infrared remote control. Effecting/controlling hardware with software and software with hardware-interfacing.

METHOD OF STUDY The compilation of this project is a result of research carried out using the library for consultation of various textbooks, magazines, and journals to source useful information. Several internet websites were visited to get relevant information on the project topic. The amendment and testing of the circuit as well as the construction of the whole project were done in the laboratory. The valuable and constructive guidelines, advice, and instructions provided by my project supervisor also helped me achieved the set target.

 

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DESIGN AND CONSTRUCTION OF A DIGITAL CLOCK



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