PAPERLESS E-CASH MANAGEMENT SYSTEM BY

USING AN I-BUTTON TECHNOLOGY

ABSTRACT

AIM:

The main objective of this project is to develop an embedded system, which can used to

withdraw money at ATM’s using I-Button technology.

IMPLEMENTATION:

This project is implemented 8051 based At89s52 developed board interfaced with I-

Button, keypad, EEPROM for storing the data, LCD for displaying the data.

BLOCK DIAGRAM:

MICROCONTROLLER

AT89S52

LCD 16×2

i-Button

E2PROM

Keypad RPS

Crystal

POWER SUPPLY:

DESCRIPTION:

The i-Button is a computer chip enclosed in a 16mm thick stainless steel can. Because of

this unique and durable container, up-to-date information can travel with a person or object

anywhere they go. The steel i-Button can be mounted virtually anywhere because it is rugged

enough to withstand harsh environments, indoors or outdoors. It is small and portable enough to

attach to a key fob, ring, watch, or other personal items, and be used daily for applications such

as access control to buildings and computers, asset management, and various data logging tasks.

In this work we are going to develop an embedded system board attached with an i-

button reader and i-buttons will be given to some particular persons can be used that i-buttons as

their ATM cards. Our project is that we can recharge our i-button with some amount and that

amount will be reduced whenever we will draw the cash. the amount of cash deposit and

withdraw will be entered by the user through keypad. This project is a prototype of the ATM

application.

Step Down

Transformer

Bridge

Rectifier

Filter

Circuit

Regulator section

SOFTWARE:

Embedded ‘C’

RIDE to write code

ISP to burn the chip

HARDWARE:

At89s52 based our own developed board

Power Supply

I-Button module

EEPROM

Keypad

LCD

ADVANTAGES: Low cost, automated operation, Low Power consumption.

REFERENCES

1. The 8051 micro controller and embedded systems by Mazidi.

2. www.wikipedia.org

3. WWW.atmel.com

4. www.8051projects.com

5. Embedded systems with 8051 by kenith j ayala

6. www.dallas.com