This document summarizes a project report for designing and fabricating a prosthetic hand that is controlled by voice commands. A team of 4 students designed the prosthetic hand under the guidance of an assistant professor. The report describes the materials used, design considerations, components of the prosthetic including an Arduino microcontroller, DC motors, Bluetooth module, and an Android smartphone. It also provides the program code for Arduino and the Android application. The report concludes the prosthetic hand has advantages of low cost and being voice controlled but also limitations. It suggests future work could improve functionality.

1. Major Project report on
DESIGN AND FABRICATION OF PROSTHETIC
HAND USING VOICE CONTROL
Submitted in partial fulfillment of the requirement for the award of degree of
BACHELOR OF TECHNOLOGY
IN
Mechanical Engineering (Mechatronics)
By
E.S.Muneer Hussain [10261A1411]
P. Thulasi Ramudu [10261A1441]
V.Meena [10261A1460]
A. Mahesh [11265A1402]
Under the esteemed guidance of
Smt.M.Pratyusha
Assistant Professor
DEPT. OF MECHANICAL ENGINEERING (MECHATRONICS)
MAHATMA GANDHI INSTITUTE OF TECHNOLOGY
Accredited by NBA-AICTE, New Delhi.
(Affiliated to JNTU, Hyderabad)
GANDIPET, R. R. Dist. – 500075, A.P.

2. MAHATMA GANDHI INSTITUTE OF TECHNOLOGY
Accredited by NBA-AICTE, New Delhi.
(Affiliated to JNTU, Hyderabad)
GANDIPET, R. R. Dist. – 500075, A.P.
CERTIFICATE
This is to certify that this project entitled
“DESIGN AND FABRICATION OF PROSTHETIC HAND USING VOICE CONTROL”
Has been submitted by
E.S.Muneer Hussain [10261A1411]
P.Thulasi Ramudu [10261A1441]
V.Meena [10261A1460]
A.Mahesh [11265A1402]
In partial fulfillment for the awardof the degree ofbachelor oftechnologyin
mechanical engineering(Mechatronics) is the bonafide workcarriedout bythem under
our guidance.The results embodiedinthisproject have not beensubmittedto any other
Universityor Institutionfor the awardof degree.
Internal Guide: Dr.K.Sudhakar Reddy
Mrs. M. Pratyusha Head of Department
Assistant Professor
INTERNAL EXAMINER EXTERNAL EXAMINER

3. Acknowledgement
A comprehensive project report always requires goodwill, encouragement, guidance and
support of many people. We have great pleasure in expressing our indebtedness to Assistant
professor Smt.M.Pratyusha for her constant help and encouragement. We acknowledge and
express our deep sense of gratitude to her, whose able guidance, incessant and encouragement
and sound counsel were instrumental in this work.
We have great pleasure in expressing our gratitude to Dr. G. Chandra Mohan Reddy,
Principal of M.G.I.T., for his constant encouragement and motivation throughout the years.
We thank Dr. K. Sudhakar Reddy, Professor and Head of the Department, Mechanical
(Mechatronics) Engineering, for his unlisted encouragement and more over for his timely
support and guidance till the completion of our project work.
It would be impossible to refer in detail to many persons who have been consulted in
compilation of this work and elsewhere who have contributed advice assistance, equipment and
skilled services that were invaluable to the progress of the work. I did excuse for not naming
them individually.

4. INDEX
ABSTRACT 1
1. INTRODUCTION 2
1.1 Origin 2
1.2 Possible body prosthesis 2
1.3 Advancements 4
1.4 Economic aspects 6
1.5 Low cost prosthetics for children 7
1.6 Attachment to the body. 7
1.7 Prosthetic enhancement 9
1.8 Current Technologies 10
1.9 Robotic Prosthesis 12
2. MATERIALS REQUIRED 15
2.1 Aluminium 15
2.2 Mild Steel 18
3. DESIGN CONSIDERATIONS 19
3.1 Design considerations for any prosthetic part 19
3.2 Block Diagram 20
3.3 Objectives 21
3.4 Division of project 21

5. 4. COMPONENTS 23
4.1 Arduino micro controller 23
4.2 DC Motor 26
4.3 Voltage regulator LM-317T chip 28
4.4 Bluetooth module 29
4.5 L293D 32
4.6 Smart phone with Android operating system 35
4.7 Reception 36
5. WORKING 37
5.1 Description 37
5.2 Program for arduino 38
5.3 Program for Android application 42
5.4 Schematic 65
6. CONCLUSION 66
6.1 Advantages 66
6.2 Limitations 67
RESULT 68
FUTURE SCOPE 69
7. REFERENCES 70
8. APPENDIX-I. 71
9. APPENDIX-II 75

6. LIST OF TABLES
1. TRUTH TABLE 34
LIST OF FIGURES
1. PROSTHETIC FINGER 11
2. BLOCK DIAGRAM 20
3. ARDUINO MICRO CONTROLLER 24
4. DC MOTOR 27
5. WORKING OF A DC MOTOR 27
6. VOLTAGE REGULATOR 29
7. BLUETOOTH MODULE 31
8. INTERFACING BLUETOOTH WITH ARDUINO 31
9. L293D PIN DIAGRAM 34
10. ANDROID SMART PHONE 35
11. OVERVIEW OF ANDROID 35