RFID Based ATM Security System

Abstract

This project is developed to avoid misuse of ATM card in an easy manner. It consists of a RF ID tags, RF ID sensor, Microcontroller unit, cash motor, driver, alarm. When the user inserts the RFID card, the signal will be sent to the microcontroller unit. Microcontroller generates the control signal to send the 4 digit OTP number to the user. Generated control signal will be given to the GSM modem. GSM modem is responsible for sending message. User need to type the OTP number in the keypad to take cash from ATM machine. Keypad input is given to the microcontroller. Microcontroller generates the control signal and it will be given to the cash motor and siren through driver. If the number is wrong, then the alarm will ring and the cash motor will be stopped. Thus the unauthorized user may be caught easily. It is very accurate and cost Effective. The microcontroller used in this project is PIC16F73. The microcontroller program is written in assembly language.

Existing System

Proposed System

Architecture

BLOCK DIAGRAM