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    CELLPHONE OPERATED ROBOT

    A Project Report

    Submitted by

    B.VINOD KUMAR (2210409106)

    G.PRATAP VAMSI (2210409143)

    ELECTRONICS AND COMMUNICATIONengineering

    DEPARTMENT

    GITAM UNIVERSITY.

    At

    ECIL-ECIT

    (Electronic Corporation of India Limited)

    Under the esteemed guidance of

    Mr.P.B.RAMAKRISNA (SDGM, CED)

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    DECLARATION

    I hereby declare that the project entitled CELLPHONE OPERATED

    ROBOT submitted for the ELECTRONICS AND COMMUNICATION DEPARTMENT.

    This dissertation is our original work and the project has not formed the basis for the award

    of any degree, associate ship, fellowship or any other similar titles and no part of it has been

    published or sent for publication at the time of submission.

    By

    B.VINOD KUMAR (2210409106)

    G.PRATAP VAMSI (2210409143)

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    ECIL was setup under the Department of Atomic Energy on 11th April, 1967 with a

    view to generate a strong indigenous capability in the field of professional grade electronics.

    The initial accent was on total self-reliance and ECIL was engaged in the design

    development, Manufacture and Marketing of several products with emphasis on three

    technology lines viz. Computers, Control Systems and Communications. Over the years,

    ECIL pioneered the development of various complex electronics products without any

    external technology help and scored several firsts in this fields prominent among them

    being countrys

    First Digital Computer

    First Solid State TV

    First Control & Instrumentation of Nuclear Power Plants

    First Earth Station Antenna

    First Computerized Operator Information System

    First radiation Monitoring & Detection System

    First Automatic Message Switching System

    First Operation & Maintenance Center for E-108 Exchange

    First Programmable Logic Controller

    First Solid state Cockpit Voice Recorder

    First Electronics Voting Machines

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    The company played a very significant role in the training and growth of high caliber

    technical and managerial man power especially in the fields of Computer and Information

    Technology. Though the initial thrust was on meeting the Control & Instrumentation

    requirements of the Nuclear Power Program, the expand scope of self-reliance pursued by

    ECIL enabled the company to develop various products to cater to the needs of Defense,

    Civil Aviation, Information & Broadcasting, Telecommunications, Insurance, banking, Police

    and Para-Military Forces, Oil & Gas, Power, Space Education, Health, Agriculture Steel and

    Coal Sectors and various user departments in the Government domain. ECIL thus evolved as

    multi-product company serving multiple sectors of Indian economy with emphasis on import

    of country substitution and development of products & services that are of economic and

    strategic significance to the country.

    Established: 1967

    Location: Hyderabad, India

    In addition to its primary focus on chosen areas like Strategic Electronics and IT, the

    Company took upon itself certain areas with a view to sub serve certain obligations of

    enterprises. Mostly, they are confined to the societal and rural sectors focusing on the health

    care, education, agriculture and such related areas.

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    ABSTRACT

    Most of Artificial Intelligence will eventually lead to robotics. Most neural

    networking, natural language processing, image recognition, speech recognition/synthesis

    research aims at eventually incorporating their technology into the epitome of robotics the

    creation of a fully humanoid robot.

    The field of robotics has been around nearly as long as Artificial Intelligencebut the

    field has made little progress. This is only natural, since the field not only attempts to conquer

    intelligence, but also the body that embodies it a formidable task. Robotics, though, is not

    just about humanoid robots; but also about their commercial applications in manufacturing,

    safety and hundreds of other fields.

    It is only relatively recently that robots have started to employ a degree of Artificial

    Intelligence in their work many robots required human operators, or precise guidance

    throughout their missions. Slowly, robots are becoming more and more autonomous.

    Robotics is an absolutely fascinating field that interests most people. Robot is a system that

    contains sensors, control systems, manipulators, power supplies and software all working

    together to perform a task. Robot should have Sensing, Movement, Energy and Intelligence

    characteristics.

    This project deals with one of the application of robotics. In this project one moving

    object is developed such that it is moved as per commands given by master through Mobile

    phone and that command is received by mobile phone which is placed on the robot and give

    information to the DTMF IC which is connected to the microcontroller.

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    This project is equipped with DC motor GSM mobile phone, DTMF IC, Micro

    controller along with the Power supply unit. Robot finds it applications in the real time in

    Defense applications, Satellite system, Flight tracking system, car race and Cerebella control.

    TOPICS INDEX

    1. INTRODUCTION

    1.1. How to build Cell phone Operated Robot

    1.2. Block Diagram

    2. INTRODUCTION TO MICROCONTROLLER

    2.1. Major features of Microcontrollers

    2.1.1. Why AT89S52?

    2.2. AT89S52 Microcontroller Architecture

    2.3. Pin Description

    2.3.1. AT89S52 Oscillator and Clock

    2.4. Special Function Registers

    2.4.1. SFR Types

    2.4.2. SFR Descriptions

    2.5. Conclusion

    3. LIQUID CRYSTAL DISPLAY

    3.1. Specifications of LCD

    3.1.1.16*2 Alphanumeric LCD module features

    3.2. Types of LCDs

    3.3. Interfacing LCD to 8051 Microcontroller

    3.4. Schematic Diagram of LCD

    3.5. Circuit Description

    4. INTRODUCTION TO EMBEDDED SYSTEMS

    4.1. Introduction

    4.1.1. Definition of Embedded system

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    4.1.2. Features of Embedded system

    4.1.3. Characteristics of Embedded system

    4.1.4. Overview of Embedded system Architecture

    4.1.5. Applications of Embedded system

    4.2. Types of Embedded system

    4.2.1. Standalone Embedded system

    4.2.2. Networked information appliances

    4.2.3. Mobile devices

    4.3. Programming Language

    5. HARDWARE DESCRIPTION

    5.1. Schematic Block diagram

    5.2. DTMF (Dual Tone Multi frequency)

    5.2.1. Introduction

    5.2.2. HT917D/B features

    5.2.3. Pin Description

    5.2.4. Circuit Diagram

    5.3. Motor Driver (L293D)

    5.3.2. Pin Description

    5.3.3. Circuit description

    5.4. DC Motor

    6. REGULATED POWER SUPPLY

    6.1.1. Transformer

    6.1.2. Rectifier

    6.1.3. Filter

    6.1.4. Regulator

    7. KEIL SOFTWARE

    7.1. Introduction

    7.1.1. Keil Software Program Procedure

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    8. FUTURE SCOPE

    9. CONCLUSION

    10. REFERENCES

    FIGURES INDEX

    2.1. Functional Block Diagram of AT89S52

    2.2. Pin Diagram of AT89S52

    2.3. Oscillator & Timing Circuit

    2.4. Special Function Register Address Range

    2.5.16-bit Registers

    2.6. Special Function Registers

    2.6.1. PCON Register

    2.6.2. TCON Register

    2.6.3. TMOD Register

    2.6.4. SCON Register

    2.6.5. IE Register

    2.6.6. IP Register

    3.1. Interfacing LCD to 8051 Microcontroller

    3.2. Schematic Diagram of LCD

    3.3.2*16 Character LCD with Backlighting

    3.4. Typical pin out on a display with 1*16 pin connector

    3.5. Circuit Diagram of LCD

    4.1. Overview of an embedded system Architecture

    4.2. Basic form of ALP

    5.1. Schematic Block Diagram

    5.2. General Block Diagram

    5.3. Pin Diagram of HT9170D/B

    5.4. Circuit diagram of HT9170d/B

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    5.5. Pin Diagram of L293D

    5.6. Robot Directions

    5.7. Circuit Diagram of L293D

    5.8. Figure of DC motor

    6.1. Circuit Diagram of Power Supply

    6.2. Electrical Transformer

    6.3. Bridge Rectifier Circuit

    6.4. Positive half cycle operation

    6.5. Negative half cycle operation

    6.6. Three Terminal Voltage Regulator 78xx

    TABLE INDEX

    2.1. Port pins and their alternate functions

    2.2. SFRs

    2.2.1. TCON Register

    2.2.2. TMOD Register

    2.2.3. SCON Register

    3.1. Pin Description of LCD

    5.1. Pin Description of HT9170D/B

    5.2. Pin Description of L293D

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    1. INTRODUCTION

    In this project the robot, is controlled by a mobile phone that makescall to the mobile phone attached to the robot in the course of the call, ifany button is pressed control corresponding to the button pressed isheard at the other end of the call. This tone is called dual tone multi

    frequency tone (DTMF) robot receives this DTMF tone with the help ofphone stacked in the robot

    The received tone is processed by the atmega16 microcontrollerwith the help of DTMF decoder MT8870 the decoder decodes the DTMFtone i