Digital voltage meter to use single-chip AT89S51 with ADC0809 to design a digital voltage meter, capable of measuring between 0-5V DC voltage value, four digital display, but requires the use of minimum number of components.

数字电压表源代码
................\数字电压表
................\..........\数字电压表
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................\..........\..........\ad.c
................\..........\..........\ad.hex
................\..........\..........\ad.lnp
................\..........\..........\ad.LST
................\..........\..........\ad.M51
................\..........\..........\ad.OBJ
................\..........\..........\ad.Opt
................\..........\..........\ad.plg
................\..........\..........\ad.Uv2
................\..........\..........\ad_Opt.Bak
................\..........\..........\ad_Uv2.Bak
................\..........\..........\Backup Of 数字电压表.DBK
................\..........\..........\Last Loaded 数字电压表.DBK
................\..........\..........\STARTUP.A51
................\..........\..........\STARTUP.lst
................\..........\..........\数字电压表.DSN
................\..........\..........\数字电压表.PWI

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