关于51单片机很好的入门级教程，内有跑马灯，键盘控制，定时器，中断，键控音放等多个实验例程

关于51单片机很好的入门级教程，内有跑马灯，键盘控制，定时器，中断，键控音放等多个实验例程-About 51 Singlechip very good entry-level curricula, which have marquees, keyboard control, timer, interruption, keying audio release experiment routines, etc.