数字式电压表的设计

四川大学毕业论文〔设计)Design of Digital Voltmeter[Abstract]The voltmeter used in this subject is a digital DC voltmeter.Thesingle-chip system is mainly composed of four modules,namely:ADC /DMAconversion module,eight-segment digital display module and data processing module.Among them,the main function of the ADC /DMA module is to complete theconversion of the analog input signal.The digital results obtained after the conversionwill be processed by the STM32 single-chip microcomputer.Under the action of,thecorresponding digital voltage signal is fed back,and if a specific voltage valueexceeds 5V,a buzzer alarm will be triggered.[Key words]digital voltmeter ADC/DMA module data processing displaymodule Buzzer