An Intelligent IoT-Driven ATM Security System with Invisible Keypad and User Detection
DOI:
https://doi.org/10.15662/IJEETR.2026.0802171Keywords:
ATM Security, Invisible Keypad, RFID Authentication, Ultrasonic Sensor, PIN Protection, Shoulder Surfing PreventionAbstract
The project titled “An Intelligent IoT-Driven ATM Security System with Invisible Keypad and User Detection” presents a smart and secure ATM system aimed at enhancing user privacy and preventing unauthorized access during PIN entry. It integrates hardware components such as Arduino Uno, ultrasonic and IR sensors, RFID module, and buzzer with ATM software developed using Python and a MySQL database. The system activates only when a valid user is detected, and it dynamically hides the keypad if any suspicious presence is identified. Additionally, the keypad layout is shuffled each time to prevent pattern tracking.The system consists of two main modules: the Account Management Module and the ATM Module. The Account Management Module enables administrators to create and manage user accounts with features like CRUD operations, secure storage of account details, and automatic PIN generation. User credentials are stored in the database and shared securely via email, ensuring proper record maintenance and secure communication.
The ATM Module handles user transactions such as deposit, withdrawal, balance enquiry, mini statement, and PIN change with OTP verification. During PIN entry, sensors continuously monitor for unauthorized presence, making the keypad invisible if any threat is detected. Overall, the system enhances ATM security, ensures user privacy, and provides a reliable solution to prevent fraud and unauthorized observation.
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