AT89S51 and ADC0809 microchip design a digital voltmeter, capable of measuring between 0-5V DC voltage, four digital display, but requires a minimum number of components.

28.数字电压表\28.数字电压表.doc
.............\Keil-C\STARTUP.A51
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.............\......\VOLTMETER
.............\......\VOLTMETER.C
.............\......\VOLTMETER.hex
.............\......\VOLTMETER.lnp
.............\......\VOLTMETER.LST
.............\......\VOLTMETER.M51
.............\......\VOLTMETER.OBJ
.............\......\VOLTMETER.Opt
.............\......\VOLTMETER.plg
.............\......\VOLTMETER.Uv2
.............\......\VOLTMETER.__i
.............\......\VOLTMETER_Opt.Bak
.............\Last Loaded VOLTMETER.DBK
.............\VOLTMETER.DSN
.............\VOLTMETER.PWI
.............\新建文件夹\STARTUP.A51
.............\..........\STARTUP.LST
.............\..........\STARTUP.OBJ
.............\..........\VOLTMETER
.............\..........\VOLTMETER.c
.............\..........\VOLTMETER.hex
.............\..........\VOLTMETER.lnp
.............\..........\VOLTMETER.LST
.............\..........\VOLTMETER.M51
.............\..........\VOLTMETER.OBJ
.............\..........\VOLTMETER.Opt
.............\..........\VOLTMETER.plg
.............\..........\VOLTMETER.Uv2
.............\..........\VOLTMETER.__i
.............\Keil-C
.............\新建文件夹
28.数字电压表

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