OTP Based Smart Locker for Time Flexibility and Safe Delivery

Increased demands for secure and flexible parcel delivery systems have created an increasing demand for innovative solutions that will ensure security yet still offer convenience. In this paper, the design and implementation of the OTP-based smart locker system utilizing one-time password authentication for secure and time-flexible handling of parcels are presented. The proposed system, which is based on Atmega328p, encompasses new features such as IR sensor-based parcel detection, GSM module-based OTP generation and notifications, tamper detection, and automated locking mechanisms. It also has embedded power management features with a battery backup to ensure reliability under different scenarios. The proposed design is scalable, energy-efficient, and tailored for residential and commercial applications; hence, it offers a secure and efficient solution to modern-day parcel delivery challenges.