Security with Magnetic Sensors

This project uses C programming language and a Nucleo-L476RG development board, simulating alarm setup in which digital input signals from magnetic sensors detected door or window openings and triggered visual alarm indicators through LEDs. Microcontroller hardware here is programmed by digital I/O ports, defining pin configurations, and managing input/output behavior at both the register and HAL levels. Key technical considerations included selecting appropriate GPIO pins, configuring internal pull-up and pull-down resistors, and integrating external current-limiting resistors.