VIGNAN INSTITUTE OF TECHNOLOGY AND MANAGEMENT

Submitted by:

KISHAN KUMAR DAKUA Regd N o- 122130104

AKANKHYA MOHANTY Regd No- 1101301065

HEMANTA SAHU Regd No- 1221301025

Under the Esteemed Guidance of:

Prof. V.Srikanth

“MICRONTROLLER BASED ON PASSWORD PROTECTED DOOR OPENING SYSTEM”

DEPARTMENT OF ELECTRONICS & TELECOMMUNICATION ENGINEERING

CONTENTS1. Introduction

2. Need of project

3. Objective

4. Components

5. Block diagram

6. Circuit diagram

7. Applications

8. Advantages

9. Conclusion

10.References Department of Electronics & Tele Communication 1

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INTRODUCTION

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Password based door opener security system provides us ease with security.With the help of this system, we can easily avoid the incoming of any offenders , strangers too.

We can easily access our garage, home, offices etc. without the use of any kind of keys or opening it by ourselves.Hence,provide“AUTOMATION” & “SECURITY”.

NEED OF PROJECT

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There are great varieties of digital code

locks. Generally speaking, they can be

classified into scores of type, such as electronic lock, fingerprint lock, card lock biological

lock, etc.

This kind of lock can avoiding the problems caused by the copying

of keys.

It is because the keys people carry have

become burden most of the time, but by

contrast people need only to remember a set of codes for electronics locks and don’t have to

carry any key, thus freeing themselves

from worries.

On the premise that it’s safety is high, it’s

another feature without key is getting more and more favour of people.

Among them the most practical and the most popularized one come to digital code lock.

OBJECTIVE

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The objectives of our project are listed as above:

To avoid any crimes especially stealing

activities.

To help users and give them favour to

go anywhere.

To design a keyless door entry by using

electronic digital lock code.

COMPONENTS Hardware part :• 8051/8052 Microcontroller• LCD• Motor driver• Motor• Power Supply Software part :• Keil IDE software• Proteus

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BLOCK DIAGRAM

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Components used

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KEYPAD

CIRCUIT DIAGRAM

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XTAL218

XTAL119

ALE30

EA31

PSEN29

RST9

P0.0/AD039

P0.1/AD138

P0.2/AD237

P0.3/AD336

P0.4/AD435

P0.5/AD534

P0.6/AD633

P0.7/AD732

P1.01

P1.12

P1.23

P1.34

P1.45

P1.56

P1.67

P1.78

P3.0/RXD10

P3.1/TXD11

P3.2/INT012

P3.3/INT113

P3.4/T014

P3.7/RD17

P3.6/WR16

P3.5/T115

P2.7/A1528

P2.0/A821

P2.1/A922

P2.2/A1023

P2.3/A1124

P2.4/A1225

P2.5/A1326

P2.6/A1427

U1

AT89C51

D7

14D

613

D5

12D

411

D3

10D

29

D1

8D

07

E6

RW

5R

S4

VS

S1

VD

D2

VE

E3

LCD1LM016L

R110k

C11u

C2

33p

C3

33p

X1CRYSTAL

1 2 3

4 5 6

7 8 9

0 #

1 2 3

A

B

C

D 0

.00

IN12

OUT13

OUT26

OUT311

OUT414

IN27

IN310

IN415

EN11

EN29

VS

8

VSS

16

GND GND

U2

L293D

U2(VSS) U2(VS)

POWER SUPPLY

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Flowchart

Assign ports for LCD and Motor driver

start

Initialization of ports

Assign ports for Keypad

Assign variable “pswd” to store password

Save the password in a variable “pswd”

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9

IFpswd

=k

IFC=4

Door open

C=C+1

WAIT FOR 2min

Y

Y

N

N

STOP

Enter the password using keypad(k)

Display on LCD “password matched”

Y

Display on LCD “password Wrong”

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CAMERA VIEW

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APPLICATION

• Home access security.• Office access security.• Garage automation access.• Home automation access.

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ADVANTAGES

• Simple installation.• Provide ease and automation.• Keyless system, hence no more worry of

losing of keys.• Since, it is the system having password

facility, provide security as well.

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CONCLUSION

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When we completed this project, we had learned and understand the process of

constructing the Digital Code

Lock which contained hardware and software development. We also

know and understand the microcontroller PIC and

how to implement it on my project.

Our digital code lock performed as expected. We were able to implement all the functions specified in

our proposal.

The biggest hurdle we had to overcome with this

project was interfacing the microcontroller with the hardware components.

This digital code lock is therefore particularly

useful in applications such as hotel room door locks, residential housing and even office buildings.

references

TEXT BOOKS: [1] The “8051 Microcontroller and Embedded Systems” by Muhammad Ali Mazidi and

Janice Gillispe Mazidi, Pearson Education.[2] ATMEL 89S52 Data sheets

REFERENCES:

[1] http://www.sparkfun.com/datasheets/Components/DS1307.pdf

[2] http://www.engineersgarage.com

[3] http://www.zntu.edu.ua/base/lection/rpf/lib/zh03/8051_tutorial.pdf

[4] http://electricly.com/at89s52-microcontroller

[5] http://www.seeedstudio.com/wiki/Grove_-_RTC#Application_Ideas

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THANK YOU

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