Description: 51 MCU to use the tool side, pull the LCD screen shows the number of 0-9,
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20\20
..\20.c
..\20.hex
..\20.lnp
..\20.LST
..\20.M51
..\20.OBJ
..\20.Opt
..\20.plg
..\20.Uv2
..\20_Opt.Bak
..\20_Uv2.Bak
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