基于STC12的51四路AD7755用电管理系统，能够采集4路AD7755的功率信息，并积分，显示功率及用电量,将功率数值通过串口发送给上位机，实现对四路用电的监控及惩罚。-STC12 the 51 quad AD7755 electricity management system, It can capture 4-channel AD7755 power, and integral display of power and electricity consumption, the power