随着电子信息化时代的到来,科学技术的发展,实现自动化以及智能化已经成为了社会的一种发展趋势,而卡是作为自动化的发展产物,比如现实中的饭卡,以及智能公交卡,门禁卡等,都充分运用到了自动化,信息化的相关技术。本文设计的基于单片机的门禁系统。所选择的单片机作为系统的核心部件,系统中的各个子模块是通过单片机控制的,最终达到识别信息,存储信息的目的。 With the advent of the era of electronic information, the development of science and technology, the realization of automation and intelligent has become a social development trend, and the card is a product of the development of automation, such as the reality of the meal card, and smart bus card, Access control cards, etc., are fully applied to the automation, information technology. This design is based on SCM access control system. The selected single-chip microcomputer as the core components of the system, each sub-module in the system is controlled by the single-chip microcomputer, and ultimately achieve the purpose of identifying information, storing information.