Inc Directory Reference

Files
	controller.h
	exti.h
	Public API for external interrupt (EXTI) configuration.
	lights.h
	Public API for Traffic Light control and GPIO management.
	queue.h
	Public API for circular queue implementation.
	systick.h
	Public API for SysTick timer configuration and millisecond utilities.
	uart.h
	Public API for UART2 peripheral.