一个基于AT89C51的编写键盘矩阵程序，可以增加扩展功能！-AT89C51-based procedures for the preparation of the keyboard matrix can be increased and expanded!

该系统主要是采用AT89C51单片机为主要核心将电能表测得的用电量装换为数字脉冲形式利用CAN总线将数据传到计算机控制中心从而实现控制中心对用电户进行统一抄表和收费。-The system is mainly used AT89C51 microcontroller as the core of the electric energy meter measured the electricity installed for the digital pulse form using CAN bus