This is a basic smart lock system made using Arduino, a keypad, a 16x2 LCD screen and the code written in c++. When the user enters the correct password, it shows "Access Granted". If the wrong ...

A secure embedded system project that implements a password-protected door lock using an Arduino, 4×4 matrix keypad, 16×2 LCD, and a servo motor. The system provides real-time user feedback, limited ...

Here is the circuit diagram of Electronic code lock system using 8051 microcontroller. It is very useful at residential places to ensure better safety. This system demonstrates a circuit named ...