基于单片机的数字电压表设计实现

本文以STC89C52为主控制器,利用ADC0832设计数字电压表,控制核心STC89C52对转换结果进行转换和处理,并通过数码管和LED小灯分别进行动态显示数值和档位。数码管用两片74HC573驱动,LED灯点亮显示电压值档位,并进行实验。实验结果表明,基于ADC0832的数字电压表可进行简单的电压测量,使用方便,测量精确。

This paper takes STC89C52 as the main controller,uses ADC0832 to design digital voltmeter,controls the core STC89C52 to convert and process the conversion results,and dynamically displays the value and gear through digital tube and LED lamp respectively.The digital tube is driven by two pieces of 74HC573.The LED lamp lights up the voltage level and carries out experiments.The experimental results show that the digital voltmeter based on ADC 0832 can be used to measure the voltage simply,conveniently and accurately.

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