This project presents a secure, low-cost electronic voting system using Arduino Uno, an R305 fingerprint sensor, a keypad-based button interface, and an LCD display. Voters authenticate via ...
A 4x4 membrane keypad is a compact and a cost-effective input device that is commonly used in a variety of electronics projects. It consists of 16 buttons arranged in a 4x4 grid and is covered with a ...
Often times, we need to secure a room at our home or office (perhaps a secret dexter’s laboratory) so that no one can access the room without our permission and ensure protection against theft or loss ...
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