RFID is a technology that incorporates the use of electromagnetic or electronic coupling in the radio frequency

1. PRESENTATION ON
RFID BASED SMART CARD READER
GUIDE: DR. B. VISVESVARA RAO
Professor & HOD
K.GOUTHAM……………….................12E35A0408
B.SHRESHTA………………………….12E35A0409
MUDDAM PRASAD…………………..12E35A0411
DESIREDDY SNEHALATHA ..............12E35A0412
KANUGANTI CHANDRA MOULI ….12E35A0413
CHILUMULA VAMSI KRISHNA…….07E31A0416

2. OBJECTIVE
 RFID is a technology that incorporates the
use of electromagnetic or electronic coupling
in the radio frequency
 IT is a system used to track objects, people,
or animals using tags that respond to radio
waves.
 RFID uses different types of tags
 RFID is coming into increasing use in
industry as an alternative to the bar code.

3. BLOCK DIAGRAM
 Power supply with an output
voltage of +5v
 ATMEGA8 MICRO
CONTROLLER
 RFID READER
 LCD
 BUZZER
 RFID TAG

4. POWER SUPPLY

5. MICRO CONTROLLER
ATMEGA 8- A MODIFIED HARVARD ARCHITECTURE 8-BIT RISC SINGLE CHIP MICROCONTROLLER

6. FEATURES OF MICRO CONTROLLER
 MEMORY: 8 Kb of Flash program memory
512 Bytes of EEPROM
1Kbyte Internal SRAM
 I/O Ports: 23 I/o lines from Port B, Port C and Port D.
 INTERRUPTS: Two External Interrupt source, located at port D.
 TIMER/COUNTER: Three Internal Timers are available, two 8 bit, one 16 bit, offering
various operating modes and supporting internal or external clocking.
 SPI (Serial Peripheral interface): Four pins are assigned to Atmega8 to implement this
scheme of communication.
 ANALOG TO DIGITAL CONVERTER:
 Inbuilt analog to digital converter can convert an analog input signal into digital data
of 10bit resolution. For most of the low end application, this much resolution is
enough.
 USART
 TWI (Two Wire Interface)

7. BLOCK DIAGRAM OF ATMEGA 8

8. RFID MODULE
 IT CONSIST OF RFID
READER
 MAX232 IC
 BUZZER

9. THE PHYSICS OF RFID
 An RFID system is just a reader and a tag
communicating over the air at a certain
frequency
 Parts
1. Readers
2. Antennas
3. Tags

10. RFID READER
 RFID reader is a radio
that picks up analog
signals
 The reader not only
generates the signal
that goes out through
the antenna into
space, but also listens
for a response from
the tag
 Receives analog
waves and then turns
them into bits of digital

11. RFID TAGS
 An RFID tag is made up of two basic parts –
the chip, or integrated circuit, and – the
antenna
 The chip is a tiny computer that stores a
series of numbers unique to that chip
 The antenna enables the chip to receive
power and communicate, enabling the RFID
tag to exchange data with the reader

12. TYPES OF TAGS
 Active tags have a battery that powers their
communication
 Passive tags communicate when they are in the close
presence of a reader
 – Being in the presence of a reader means that they are
sitting in an electromagnetic field
 – When a passive tag enters an electric or magnetic field,
the tag draws enough energy from that field to power
itself and broadcast its information

13. TAGS

14. CIRCUIT IMPLEMENTATION

15. SOLDRING PART

16. COMPLETE KIT

17. EXECUTION
 Compiler/IDE (Integrated Development
Environment)
- Used Code Vision AVR (CVAVR)
 Programmer- Pony Prog . For dumping the
program into ATMEGA 8
 USB Programmer

18. CODE VISION AVR (CVAVR)

19. PROGRAM
#include <mega8.h>
#include <delay.h>
#include <stdlib.h>
// Alphanumeric LCD Module functions
#asm
.equ __lcd_port=0x18 ;PORTB
#endasm
#include <lcd.h>
// Standard Input/Output functions
#include <stdio.h>
// Declare your global variables here
char c[10];
char d;

20. FEATURES OF PROJECT
 Powered by +5v .
 Current consumption 0.45mA for microcontroller.
 We can hear Buzzer sound when ever a tag comes
in contact with rfid reader.
 It will provide entire detail of a product, person.

21. ADVANTAGES
 This system is fully automated and it does
not require any human interaction
 Efficiency
 Return on Investment
 Less Vulnerable to Damage

22. APPLICATIONS
 The AUTO-ID consortium
 AUTO-ID can track
– Products,
– Containers,
– Vehicles,
– Animals,
– as well as their condition

23. FUTURE DEVELOPMENT
 We can voice announcement system to this
project. so whenever user logs in, we can
announce message like, “Your attendance
has been logged in” or “Your card is invalid”.
 We can send this data through internet to
the user. So that user can access it remotely
via internet.
 We can implement GSM technology