单片机与PC机通信示例，带缓冲池，使用队列实现。-Communication with the PC, SCM example, with the buffer pool, use the queue implementation.

基于奋斗开发板的STM32的按键控制LED灯，使用状态机思想消除按键抖动并加入了长按处理功能，用16位FIFO（数据缓冲队列）提高可靠性和可移植性-STM32 development board based on the struggle of the keys to control LED lights, using a state machine debounce ideology and joined the long press processing functions, using 1

使用stm32的串口实现fifo队列缓冲读写数据，值得新手学习(Using STM32 serial port to realize FIFO queue buffer read and write data, it is worth learning by novice.)