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1、此文档是毕业设计外文翻译成品（ 含英文原文+中文翻译） ，无需调整复杂的格 式！下载之后直接可用，方便快捷！本文价格不贵,也就几十块钱！一辈子也就 一次的事！ 外文标题：Design of Liquid Crystal Digital Voltmeter Based on Single Chip Microcomputer 外文作者：Wang Hui-feng ,Liu Xiao-hua 文献出处:Consumer Electronics, Communications and Networks (CECNet), 2018 (如觉得年份太老，可改为近 2 年，毕竟很多毕业生都这样做) 英文

2、1847 单词，11902 字符(字符就是印刷符)，中文 2879 汉字。 Design of Liquid Crystal Digital Voltmeter Based on Single Chip Microcomputer Abstract: The design is based on Atmel51 microcontroller development platform and automatic control based on the principle of a digital voltage meter system The system uses Atmel89C52

3、microcontroller as the control core, ADC0832 for the sampled data system, The use of a zener diode for over voltage protection, and through the realization of analog switch achieves the input range automatic conversion, character liquid crystal display shows the measured voltage. Key words: Digital

4、voltmeter;Atmel89C52; A/D converter; I. THE OVERALL SYSTEM DESIGN SCHEME This system realize the function mainly through the hardware design and software programming. First, according to the design requirements to produce complete the design of circuit diagram. The hardware circuit uses ATMELs AT89C52 as the main processor, the system is mainly composed of signal acquisition, A/D conversion, data processing and output, drive and display modules. Second, according to the circuit diagram of progr