IoT - Based ATM Pin Entry by Random Word Generator Using Design Thinking Framework

Ensuring the security of ATM transactions is of paramount importance, and this project introduces an innovative approach to enhance the security of ATM pin entry through an IoT-based system. Leveraging the Design Thinking framework, the proposed system integrates key components, including Arduino for data processing, RFID technology (emulating an ATM card), an LCD display, and GSM communication.

The system's functionality is designed to address the security challenges associated with ATM pin entry. When a user scans their RFID card, the system generates a series of random words on the LCD display. The user is required to select one word from the list. Subsequently, they count the letters in the chosen word and add this count to the last digit of their ATM pin. The user is then prompted to enter this combined value followed by their actual pin. If the pin is entered correctly, the system confirms the transaction via GSM notification. Even if the pin is entered incorrectly, the user is immediately notified through GSM, providing an added layer of security and data is uploaded in thingspeak server buzzer for alerting purpose. The implementation of this IoT-based approach aligns with the principles of the Design Thinking framework, ensuring a user-centric, secure, and innovative solution to ATM pin entry.       

Keywords: Arduino, LCD, Safety, RFID tags, GSM, Thinking framework