实现对单片机脉冲宽度调制程序实现，对单片机初学者熟悉单片机非常适用。-To achieve single-chip pulse width modulation procedures to achieve the single-chip single-chip is suitable for beginners are familiar with.

过学习任务一的完成方法，熟悉mcs-51单片机的内部结构，掌握mcs-51单片机各组成部分的功能和特点 。 -Through the completion of a method of learning tasks, familiar with the mcs-51 MCU' s internal structure, control mcs-51 single chip the functions of the various components and features.

Easy 51Pro v2.0宇宙版是免费版51单片机的编程软件