3、片机为核心，阐述了系统工作原理，给出了软件流程。该电子定时器在满足对电器的电源进行控制，同时也要满足电子定时器的简易操作。最大时间能达到24h。关键词定时器；单片机；数字电路；智能；DesignandImplementationofTimingSwitchControllerBasedonMCUAbstractWith the progress of era, the development of electronic industry, the application of the timer is bec
4、oming more and more widely.But the traditional timer are using spring motor type, motor drive type or clock type mechanical timer, etc.Electronic timer timer relative labor pain, small volume, light weight, low cost, high precision, long life, and safe and
5、reliable, convenient adjustment, suitable for frequent use.This design adopts the 51 single-chip microcomputer as the core, this paper expounds the working principle of the system, the software flow is given.Meet the electronic timer to control the power of
6、 the electrical appliances, at the same time to facilitate users to the operation of the electronic timer.Maximum time can reach 24 h.KeywordsTimer;MCU;digital circuit;261引言1.1研究背景与应用随着时代的进步，定时器的应用越来越广泛，电子定时器在工业中经常用于延时自动开关、定时、报警。在家用电器中经常用于延时自动开关、定时。延时自动开关可用
