STC12C2052AD through own AD sampling analog voltage and through the cascade of two 74 hc595 are needed to drive the four digital tube display the measured voltage

adfour.lnp
adfour.LST
adfour.M51
adfour.plg
adfour.uvopt
adfour.uvproj
adfour_uvopt.bak
adfour_uvproj.bak
STARTUP.A51
STARTUP.LST
STARTUP.OBJ
20140330_131931.jpg
adfour.c
adfour.hex

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