This paper introduces a blueprinter system controlled by AT89C51 single chip microcomputer. The counter pulse circuit and the programme flow chart are given in detail.
本文介绍了一个AT89C5 1单片机在控制工程晒图机方面的应用实例，特别介绍了计数信号的获取和处理，并给出了详细的程序框图。
They are the analog counter, programmed to calculate pulse.
它们是模拟计数器，经编程后可以计算脉冲。
Pulse counter with manual reset and electric output signal.
有手动复位和电气输出信号的脉冲计数器。
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