Through setting DS1616 with single chip computer AT89C51, it realizes that the system is powered on and off at ordinary time.
通过AT89C51单片机对DS1616的初始化，可实现系统按预先确定的时间段开机与关机；
A new system using single chip computer AT89C51 as the central controller for controlling and detecting of signal of the spectrometer is put forward in the paper.
提出了采用单片机at89c 51作为中央主控器，对光谱仪进行控制和信号检测的新系统。
The paper provides a scheme to control AC servo-motor using single chip-computer AT89C51, including hardware design and software design.
介绍了一种由at89c 51单片机控制交流伺服电机的系统方案，包括系统硬件设计和软件设计。
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