Src Directory Reference

Files
	controller.c
	exti.c
	External Interrupt (EXTI) configuration for vehicle detection inputs.
	lights.c
	Traffic light control and GPIO management.
	main.c
	Application Entry point for the Traffic Control System.
	queue.c
	Circular queue Implementation for managing traffic light requests.
	syscalls.c
	STM32CubeIDE Minimal System calls file.
	sysmem.c
	STM32CubeIDE System Memory calls file.
	systick.c
	SysTick timer configuration and millisecond utilities.
	uart.c
	UART drive implementation.