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TITLE PAGE

 

BY

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--/H2013/01430
DEPARTMENT OF ----
SCHOOL OF ---
INSTITUTE OF ---

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APPROVAL PAGE

This is to certify that the research work, "design & construction of a microcontroller based stepper motor drive" by ---, Reg. No. --/H2007/01430 submitted in partial fulfillment of the requirement award of a Higher National Diploma on --- has been approved.

By
---                                                     . ---
Supervisor                                                  Head of Department.
Signature……………….                           Signature……………….        

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External Invigilator

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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.

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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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PROJECT DESCRIPTION: This work "design & construction of a microcontroller based stepper motor drive" research material is a complete and well researched project material strictly for academic purposes, which has been approved by different Lecturers from different higher institutions. We made Preliminary pages, Abstract and Chapter one of "design & construction of a microcontroller based stepper motor drive" visible for everyone, then the complete material on "design & construction of a microcontroller based stepper motor drive" is to be ordered for. Happy viewing!!!

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A microcontroller-Based Versatile Stepper Motor System/Trainer has been designed and implemented in this project. The developed prototype was built with readily available components including the AT89C51 Microcontroller which runs the control software and provides a flexible interface to the stepper motor drive. The control system is capable of driving the stepper motor clockwise or counterclockwise in full steps or in half steps according to the need of the stepper motor driven application. The angular displacement for the stepper motor shaft is 50 per full-step and 2.50 per half-step but this varies according to the design of each stepper motor. This prototype can be used to demonstrate the features of a stepper motor that recommends it for use in incremental motion control where precision and positioning accuracy are of paramount importance. Examples of such applications include its use in conveyor belts in pharmaceutical industries, bottling companies, printers, and many others. If used as a trainer kit in our tertiary institutions, there is no doubt that it will enhance the know-how of the students and by extension improve their capacity to help automate our local industries.

TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
CHAPTER ONE
INTRODUCTION
1.1       BACKGROUND OF THE PROJECT

1. AIM AND OBJECTIVES OF THE PROJECT
2. JUSTIFICATION OF PROJECT
3. SCOPE OF THE PROJECT

CHAPTER TWO
LITERATURE REVIEW

1. OVERVIEW OF STEPPER MOTOR
2. ADVANTAGES OF STEPPER MOTORS
3. DISADVANTAGES OF STEPPER MOTORS
4. TYPES OF STEPPER MOTORS
5. MODES OF OPERATION IN STEPPER MOTOR
6. CALCULATING THE STEPS PER REVOLUTION FOR STEPPER MOTOR
7. WORKING  PRINCIPLE
8. OPERATION OF STEPPER MOTOR
9. STEPPER MOTOR CONSTRUCTION
10. APPLICATIONS OF STEPPER MOTOR

CHAPTER THREE
SYSTEM DESIGN METHODOLOGY

1. BASICS OF THE SYSTEM
2. SYSTEM BLOCK DIAGRAM
3. SYSTEM CIRCUIT DIAGRAM
4. CIRCUIT DESCRIPTION
5. COMPONENTS USED
6. CIRCUIT DESIGN
7. POWER SUPPLY UNIT
8. MICROCONTROLLER UNIT

CHAPTER FOUR
TEST AND RESULT ANALYSIS

1. INSTALLATION OF THE COMPLET DESIGN 
2. CONSTRUCTION PROCEDURE AND TESTING
3. CASING AND PACKAGING
4. ASSEMBLING OF SECTIONS
5. TESTING OF SYSTEM OPERATION

CHAPTER FIVE

1. CONCLUSION
2. RECOMMENDATION

REFERENCES
CHAPTER ONE 
1.0                                                 INTRODUCTION
1.1             Background of the Study
Microcontroller based stepper motor control is an electronic device which transfers control to an attached object and drives it towards a particular direction in stipulated steps as specified by the microcontroller, depending on control input signals from the controller, the stepper motor can be caused to exhibit various effects through specified mode of operation. It is applied in electromechanical devices were precise or specific angular movement is being addressed [1].
The project aim is to witness the application of stepper motor on devices attached to it, there by experimenting the movement with the help yielded by this motor. With the aid of control input buttons, specific directive signals are being set up to activate the stepper motor which now transfer control to objects/device attached.
The experiments portrayed by this project are achieved using the control software found in the microcontroller [1].

1. Aim and Objective of the Project

The main aim of this work is to build a microcontroller based stepper motor drive.
The Objectives of this project are as follows,

1. To design and implement a stepper motor controller by programming the microcontroller with sequence of actions to carry out as at when due
2. To interface a stepper motor with an 8051 Microcontroller.
3. To study the working principle of a stepper motors
4. To design and implement a stepper motor drive or power circuit
5. To design and develop stepper motor base experiments to serve as laboratory work for students of tertiary institution
6. To interface the stepper motor controller to the stepper motor drive using opto isolators to protect digital circuits from power circuits
7. To test the system by performing all the designed experiments with it.

1.3             Justification of Project
The conventional motor (AC/DC) spin continuously, with the AC motor having two parts which are the outside stationary stator and an insider rotor while the stepper motor moves one step at a time, if we command a stepper motor to move some specific number of steps, it rotates incrementally that many number of steps and stops. Because of this basic nature of a stepper motor, it is widely used in low cost open loop position control system. Open loop control means no feedback information on about the position is needed. This eliminates the need for expensive sensing and feedback devices such as optical encoders. In this project, the position is known simply by keeping track of the number of input step pulses. This fact simply entail that the aim of this project was actualized.

1.4          Scope of the Project
This project covers the theoretical and analytic concept behind motors, its origin and advancements made in the technology. The design of an electronic circuit that will help achieve the desired objective will be shown in details.

Also discussed are the various components that will be implemented in the circuit, the pin layout, the wiring schematics and the complete schematics and packaging of the project.

Moreover, the desired objectives were compared with the actual outcome based on a set of test data, to determine how satisfactory the project is, cost analysis shall also be taken into consideration by looking at how much it takes to develop one system. From this cost evaluation, one can then simulate cost of mass producing the system. The problem encountered during the development of the project and the steps taken to overcome them shall be listed.

CHAPTER FIVE
5.1 CONCLUSION
At the end of this work, a stepper motor which is an electromagnetic device that converts digital pulses into mechanical shaft rotation was discussed. Advantages of step motors are low cost, high reliability, high torque at low speeds and a simple, rugged construction that operates in almost any environment. The main disadvantages in using a stepper motor is the resonance effect often exhibited at low speeds and decreasing torque with increasing speed.
The project has been successfully completed and the main objective of emulating a stepper motor drive on AT89S52 micro controller has been achieved.

5.2                                                    RECOMMENDATION
This control system is recommended for every electronics laboratories, and industries to aid those working or living in those places when it comes to repairing their equipments. This control system has to be perceived by the society and the world at large as a necessary and vital technological upgrade.
While working on this design, at some point in time we were carried away by the fact that our project is working as desired but on further thinking, we thought about the fact that our control system should working independently on its own when it comes to the power supply unit, that the system get its power from the public power supply system which is well known that it is not stable, so on this note , we will advice any further work on this control system to have its power supply independent on its own or better still use rechargeable batteries or solar if possible.

 

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CHAPTER TWO: The chapter one of this work has been displayed above. The complete chapter two of "design & construction of a microcontroller based stepper motor drive" is also available. Order full work to download. Chapter two of "design & construction of a microcontroller based stepper motor drive" consists of the literature review. In this chapter all the related work on "design & construction of a microcontroller based stepper motor drive" was reviewed.

CHAPTER THREE: The complete chapter three of "design & construction of a microcontroller based stepper motor drive" is available. Order full work to download. Chapter three of "design & construction of a microcontroller based stepper motor drive" 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 & construction of a microcontroller based stepper motor drive" is available. Order full work to download. Chapter four of "design & construction of a microcontroller based stepper motor drive" 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 & construction of a microcontroller based stepper motor drive" is available. Order full work to download. Chapter five of "design & construction of a microcontroller based stepper motor drive" consist of conclusion, recommendation and references.

 

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