This document describes an electronic voting machine project that uses fingerprint identification. It contains a fingerprint scanner that checks voter thumbprints against a stored database to authenticate voters before allowing them to cast ballots. The system aims to securely identify voters and prevent invalid votes. It explains the technologies used, including a microcontroller, MAX232 converter, and LCD display. Advantages are quick voting, reduced costs, and avoided invalid votes. Limitations include the difficulty of collecting all voter fingerprints and only identifying fingerprints, not persons.

1. GUIDED BY :
Mr. ASHWANI KR.
PANDEY
B.TECH,M.TECH
Associate Professor
PRESENTED BY :
DEPARTMENT OF ELECTRONICS AND COMMUNICATIONS
SAURABH KUMAR

2. INTRODUCTION
• This project is designed for electronic voting machine by using the
fingerprint identification method.
• Here voters thumb impressions are used for identifying the voters.
• During voting when the voter keeps his/her thumb in the scanner,
the system will check whether it matches with pre stored
impressions in the database.
• If it matches then system will allow the voter to poll his vote and
otherwise prevent the voter from polling.

3.  Why only Fingerprint ?
• Every person in this universe has unique fingerprint.
• Fingerprints are unique i.e. everyone is born with one, which states that
fingerprints can be used for unique identification.
• Fingerprint scanner is a device for computer Security featuring
superior performance, accuracy, durability based on unique NITGEN
Fingerprint BiometricTechnology.
• Fingerprints tech is widely used in banking, authentication etc…
• Reliable and trusted
 Hence we opted for fingerprint technology in our project.

4. TECHNOLOGY BACKGROUND
In detail description of
• Block Diagram
• Power Supply
• Micro controller (AT89S52)
• MAX 232
• Finger Print Scanner (NITGEN FIM 3030)
• LCD

5.  Block Diagram
Power Supply
Micro
Controller
AT89S52
Keypad
Finger Print
Module
MAX
232
Switch
LCD Display
Security Alarm

6.  Power Supply
Step Down
Transformer
Bridge
Rectifier
Filter
Circuit
Regulator
Section
Power supply to
All sections

7.  Microcontroller (AT89S52)
• A Micro controller development of reduces PCB size & cost of
design .
• If a system is developed with a microprocessor, the designer
has to go for external memory such as RAM, ROM, EPROM and
peripherals.
• Which is Because it has 8 Kb on chip flash memory use
sufficient for our application.
• Moreover ATMEL is the leader in flash technology in today’s
market place and hence using AT 89S52 is the optimal
solution.

8.  MAX 232
• It is 16-Pin IC known asVoltageConverter or Line
Converter.
• It converts the RS-232 levels of the Fingerprint
Scanner to theTTL voltage levels of µC 8051.
• MAX  Maxim Company
232  Series number
• RS  Recommended Standard was set by the
Electronic Industries Association (EIA) in 1960.
• Using DB-9 (Data Bit) Pin connector, we’ll
connect the MAX-232 to the Fingerprint Scanner.
• We can connect two devices at a time to the MAX-232.

9. Sub-Units of EVM

10.  Features of AT89S52 :
• The AT89S52 is a low-power, high-performanceCMOS 8-bit
microcontroller.
• 4.0V to 5.5V Operating Range
• Fully Static Operation: 0 Hz to 33 MHz
• 256 x 8-bit Internal RAM
• 32 Programmable I/O Lines
• Three 16-bitTimer/Counters
• Eight Interrupt Sources
• Low-power Idle and Power-down Modes
• Fast ProgrammingTime

11.  Pin Description :

12. Fingerprint Scanner (NITGEN FIM 3030)
• The fingerprint scanner used here is NITGEN company based which is
the leading manufacturer of FIM(Finger identification Module)
• The methodology involves of storing the fingerprint images as
database and during voting the input image is matched using the
database

13. LIQUID CRYSTAL DISPLAY(LCD)
• The LCD display is used to display the messages during
the action.
• Here a 16x2 display is used, each character is made of
5x7 dot matrix.
• Displays have built in backlight(blue or green diodes)

14.  Pictorial Representation
Step DownT/F
LCD Display (2X16)
µC AT89S52
MAX - 232
Buzzer
Key Board
EEPROM
Fingerprint Scanner
NITGEN FIM 3030
DB – 9 Connector

15. END
END
CLEA
R
DATA
MASTER
MODE
LOAD
FINGERPRINTS
SAVE
FP’s

16. ADVANTAGES
• Low power consumption
• It is economical
• Less manpower required
• Time conscious, as less time required for voting and
counting
• Avoids invalid voting.
• Saves transportation cost due to its compact size.
• Convenient on the part of voter.

17. • EVM are no different than websites or software; they can be
penetrated and altered by a hacker.
• Overall cost is high, physical tampering could be possible.
• Computer software and systems can have problems that may
delay or even halt voting.
DISADVANTAGES OF EVM

18. LIMITATIONS
• The limitations of this projects are:
• The collection of fingerprints of all the voters is little difficult.
• Only fingerprints of the voters is identified instead of
identifying the persons

19.  Conclusion
• The project “ELECTRONIC VOTING MACHINE USING
FINGERPRINT Tech” has been successfully designed and tested.
• This can bring a revolutionary change in the election procedures.
• It provide additional security.
• System completely reduces the chance of invalid votes.
• The system can be manufactured simply as well as cheap.