基于单片机的纸张计数装置的设计  

Design of Paper Counting Device Based on Single-chip Microcomputer

作　　者：安晓莉 AN Xiaoli(Electronic and Information Engineering College,Xi’an Siyuan University,Xi’an 710038,China)

机构地区：[1]西安思源学院电子信息工程学院,陕西西安710038

出　　处：《微型电脑应用》2021年第5期168-169,173,共3页Microcomputer Applications

摘　　要：采用52单片机和555定时器设计了一个纸张计数装置,该装置在启动键按下时,能够完成A4纸张数的测量与显示,并有短路报警、自校准功能。系统的硬件电路组成为:555定时器、放置纸张的平行极板、单片机、数码管等。软件由C语言编程。经测试,该装置能够实现30张以内的纸的张数的测量,具有电路简单、成本低、性能可靠、使用方便的特点。In this paper,a paper counting device is designed with the 52 single chip computer and the 555 timer.The device can measure and display the paper number of A4 after the starting key is pressed,and has the function of short circuit alarm and self-calibration.The hardware circuit of the system is composed of the 555 timer,parallel plate placed paper,microcontroller and digital tube.The software is programmed by C language.After tests,the device can realize the measurement of paper number within 30 sheets.It has the characteristics of simple circuit,low cost,reliable performance and convenient use.

关 键 词：单片机 555定时器 数码管 C语言 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]