使用单片机做设计，主要可以降低硬件成本，通常适合设计小型而且较简单的控制系统，日常生活中常会接触到的自动化设备，凡是具有智能控制功能的，通常产品都是用单片机做设计的。另外一些工业自动化控制及电动玩具也都大量使用单片机。-Using single-chip design, mainly to reduce hardware costs, generally suitable design of small and relatively simple control system, daily exposure to the Central Standing Committee of automation equipment, all with intelligent control functions, usually products are made with single-chip design. In addition a number of industrial automation control and electronic toys are also widely used microcontroller.