This document describes the design and implementation of an automated attendance system using biometrics and GSM technologies. The system uses fingerprint verification as the biometrics technique along with an embedded system and GSM to accurately and efficiently take attendance. It works by enrolling fingerprints, storing them digitally, and then comparing fingerprints at future scans to identify users and mark their attendance. The hardware and software components used include a fingerprint sensor, microcontroller, GSM module, LCD, and programming tools. The system was tested and results demonstrated it functioning as intended to take and retrieve attendance records via SMS. In conclusions, there is scope to improve accuracy by enhancing the fingerprint image capture and processing.

1. Design and implementation of an automated
attendance system using Biometrics and GSM
Technologies.
DEPARTMENT OF ELECTRONICS & COMMUNICATION ENGINEERING
NATIONAL INSTITUTE OF TECHNOLOGY
HAMIRPUR-177005, HP (INDIA)
1
Group Members:
Manu Sehgal-10401
Abhishek Koundal-10422
Pratik Meshram-10465
Asif Kalam-10495
Under the guidance of-
Dr.(Mrs.)Rajeevan Chandel
Professor & Head

2. OUTLINE
⚫ Objective
⚫ Basic Working Principle
⚫ System implemented and designed
⚫ Software and Hardware Used
⚫ Methodology
⚫ Results
⚫ Conclusions
⚫ References
2

3. OBJECTIVE
The main aim of our project is to develop an
accurate, fast and efficient automatic attendance
system using Biometrics Technology (
Fingerprint verification technique ) , Embedded
System and GSM Technology.
3

4. Enrollment –
The first time someone
uses a biometric system;
it captures an image or
recording of specific
trait. This could be a
fingerprint, face scan,
iris recognition or voice
sample.
Storage –
The system then
converts this
data into a digital
code. Some
systems also
record this data
onto a smart card
that you carry
with you.
Comparis
on
The next time
someone uses
this system; it
compares the
trait that
particular
person presents
to previously
stored on file.
Then, it either
assets / rejects
the person what
he claims to.
Retrieval –
The system
can retrieve
the data
anytime
anywhere by
simply
sending an
SMS to know
their
attendance
record .
BASIC WORKING PRINCIPLE

5. 5
Block Diagram of the Biometric
Attendance System Designed [3]

6. WORKING OF THE CIRCUIT
❖ Here, three different technologies viz. EMBEDDED SYSTEMS ,
BIOMETRICS and GSM Technology will be used.
❖This system maintains the finger print database of all
employees/students.
❖In Biometrics we are concentrating on Fingerprint scanning. For
this we are using 1125 Fingerprint Sensor module as a
scanner.
❖This module has in-built fingerprint sensor, DSP processor.
❖It boasts of functions such as fingerprint addition, fingerprint
deletion , fingerprint search, fingerprint empty etc.
6

7. WORKING OF THE CIRCUIT Contd…
❖Here we are also using MAX-232 to have compatibility between
the Finger Print Scanner , microcontroller and GSM Module.
❖ Basically MAX 232 is used in the serial communication to
convert RTL to TTL.
❖ The 1125 finger print module is used for scanning finger
prints of each person.
❖The 8051 microcontroller is used to initiate the finger print
module, reads the finger print scanned by the module and
matches the fingerprint.
❖Whenever a person places his finger on the finger print module,
the microcontroller circuit takes the finger print data and perform
mapping with the database.
7

8. WORKING OF THE CIRCUIT Contd….
❖If both are matched, the student’s attendance will be
registered for that day .
❖If it is not matched, the student’s attendance will be
marked as absent.
❖A LCD is used to show the finger print entering
status of a person.
❖ A SIM 300 GSM Module is used for knowing the
attendance record by the students as well as their parents.
Just by sending an SMS we can get to know about our
attendance record.
8

9. SOFTWARES AND HARDWARE
❖ PROTEUS
❖KEIL (Programming in Embedded C)
❖MICROCONTROLLER .
❖ GSM Module – SIM 300
❖FINGER PRINT MODULE 1125.
❖RS 232 - MAX 232
❖LCD
9

10. METHODOLOGY FOLLOWED
❖ Literature survey was carried out.
❖ Microcontroller , GSM and its interfacing with finger print
module, LCD ,buzzer were studied.
❖ Simulation on Proteus was performed to get desire outcome.
❖ Circuit was assembled and functionality was verified
physically.
❖The prototype of the system was developed .
10

11. Results
11
The Designed Prototype

12. 12
RTC Of the system
Initialisation of sensor
Attendance Marked

13. 13
GSM outputs at different instants of time

14. CONCLUSIONS
❖There is a scope of further improvement in terms of
efficiency and accuracy which can be achieved by
improving the hardware to capture the image or by
improving the image enhancement techniques.
❖ So that the input image to the thinning stage could be
made better which could improve the future stages and the
final outcome.
14

15. Thank you
15