This project implements a simple, framed packet protocol over UART on the STM32F401RE Nucleo board. Packets are verified with CRC-16 and handled via interrupt-driven HAL drivers. Incoming commands are ...

A basic smart lock system implemented on an STM32 Nucleo board using a 4x4 matrix keypad, servo motor, buzzer, and OLED display. This version includes full keypad-based password handling and ...