Design of a simple DC digital voltmeter

Author

Wang Hui-feng ; Liu Xiao-hua

Author_Institution

Hubei Inst. of Technol., Xianning, China

fYear

2013

fDate

20-22 Nov. 2013

Firstpage

234

Lastpage

236

Abstract

The simple digital voltmeter is made of the ATMEL 8-bit MCU(Main Computational Unit), AT89S52 and national semiconductor´s ADC(Analog-to-Digital Converter) 0804, including a certain number of components. The system uses the AT89S52 MCU as the main controller, which processes the acquired analog voltage and realize LED(light-emitting diode) digital display by dynamic scanning. The voltmeter can measure the DC(direct current) voltage in the rage of 0 ~ 5V and display the measurement results by the four LED digital tube. Because of fewer components, low cost, automated adjustment, high accuracy measurement, stable performance, the voltmeter has a very good application prospect.

Keywords

LED displays; analogue-digital conversion; display instrumentation; microcontrollers; voltmeters; ADC; AT89S52 MCU; ATMEL MCU; DC digital voltmeter; LED digital tube; acquired analog voltage; analog-digital converter; digital display; light emitting diode; main computational unit; Clocks; Current measurement; Light emitting diodes; Microcomputers; Semiconductor device measurement; Voltage measurement; Voltmeters; A/D converter; ADC 0804 voltmeter; Single-chip Digital; microcontroller;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, Communications and Networks (CECNet), 2013 3rd International Conference on

Conference_Location

Xianning

Print_ISBN

978-1-4799-2859-0

Type

conf

DOI

10.1109/CECNet.2013.6703314

Filename

6703314