1. Smart Attendance Card
System
Sandeep Narang
EMTECH Foundation

2. Examples
 ATM
 CREDIT CARDS
 DEBIT CARDS
 TRAVEL CARD
 EMPLOYEE CARD

3. ATTANDANCE
SYSTEM

4. CARD ATTENDANCE SYSTEM
RFSMART CARD
SYSTEM
FINGER IDENTIFICATION SYSTEM
CARD AND FINGER SYSTEM
RETINA SENSING SYSTEM

5. COMPANIES

6. LIST OF
COMPANIES
 ALBA CONTROL SYSTEM
 ZICOM
 TIMETECH ENTERPRISES
 INSIGNIA SECURITY SYSTEMS, ETC.

7. EMBEDDED
SYSTEMS

8. Definition
 It is a combination of software and
hardware designed to perform specific
task
 It is a system which is hidden inside
 Everything other than PC is an embedded
system
 It works under certain time constraint

9. Characteristics
 Works in a time constraint environment
 Good performance and high reliability
 Less cost requirement due to mass
production
 Designed for specific task

10. Why embedded systems????
 Very rapid growing field
 Various effect on our daily lives
 We use them everyday

11. GOOD IF A>B START

12. Start
Welcome note on lcd

13. Start
Welcome note on lcd
Signals cut by opto coupler

14. Start
Welcome note on lcd
Signals cut by opto coupler
Display the user name

15. Start
Welcome note on lcd
Signals cut by opto coupler
Display the user name
Request for password

16. Start
Welcome note on lcd
Signals cut by opto coupler
Display the user name
Request for password
If
OK
Thank You

17. Start
Welcome note on lcd
Signals cut by opto coupler
Display the user name
Re enter password
Request for password
Wrong password
If
OK
Thank You

19. Block Diagram
SENSOR 16 X 2 LCD
(DISPLAY DEVICE)
µC
AT89S52
SENSOR
BUZZER
I2C
Max 232

20. Implementation
 OFFICES
 SCHOOLS
 COLLAGES ,etc.

22. I2C
A0-A2 => Address inputs A0 VCC
SDA => Serial Data WP
A1
SCL => Serial Clock Input I2C
A2 SCL
WP => Write Protect
GND SDA

23. Features
 • WP Pin for Hardware Data Protection
 • Low Voltage and Standard Voltage
Operation
 • 2-Wire Serial Interface
 • 8-Byte Page (2K), 16-Byte Page (4K,
8K) Write Modes
 • High Reliability
 – Endurance: 1 Million Cycles
 – Data Retention: 100 Years

24. Start And Stop Definition

25. Read & Write Application
Data Write
Data Read

27. TYPES
 Hyper Terminal
 Visual basics
 Using c ,etc

28. MAX 232

29. Application Diagram

30. Data communication classification

31. Code For Com. Address
#include <stdio.h>
#include <dos.h>
void main(void)
{
unsigned int far *ptraddr; /* Pointer to location of Port Addresses */
unsigned int address; /* Address of Port */
int a;
ptraddr=(unsigned int far *)0x00000400;
for (a = 0; a < 4; a++)
{
address = *ptraddr;
if (address == 0)
printf("No port found for COM%d n",a+1);
else
printf("Address assigned to COM%d is %Xhn",a+1,address);
*ptraddr++;
}
}

32. Things I Learnt here
 Programming of microprocessor and
microcontrollers
 How to start designing a circuit
 How to remove the bugs
 How to interact with others
 To have patience while working

33. Thanks
My Special thanks To Emtech Team For giving me support in
accomplishing my first project successfully
Mr Naveen Sharma
Mr wasim Akram
Mr Harsh
Mr Alam