Secure Cash Dispenser Using NFC Technology

Abstract

The Embedded Technology is now in its prime and the wealth of knowledge available is mind-blowing. Embedded technology plays a major role in integrating the various functions associated with it. This needs to tie up the various sources of the Department in a closed loop system. This proposal greatly reduces the manpower, saves time and operates efficiently without human interference. This project puts forth the first step in achieving the desired target. With the advent in technology, the existing systems are developed to have in built intelligence. This is the project developed for the prevention of theft of the atm card and to control the usage of the atm card by unauthorized person. The additional feature of this project is that no transaction can be done without the knowledge of the respective card holder. The description of the project is as follows. Whenever the transaction has to be done, once the card is inserted inside the atm machine a message is received to the mobile phone of the actual card holder with a pin number of four digits. This number is entered in the atm machine using 4x4 keypad. It moves on to the next process if the password is correct, otherwise sends a wrong message if the password doesn’t match. If the password is not correct, the microcontroller operates the door motor to close the door. On the password being right it moves on to the next level of money transaction asking for the money withdrawal. After the transaction is over it displays the balance amount in the account. In the scenario where the password doesn’t match the card would be blocked. If the account holder wants to continue with the next transaction a randomly generated password reaches his mobile entering which he can continue the same.

Existing System

Proposed System

Architecture

BLOCK DIAGRAM