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- Project Design
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- 2014-03-28
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- 影子
Description: Designing a Sports scoring device, the technical indicators are as follows: ① " Scorers" LED digital display bit is two ② " scoring" on the two-digit decimal digital only, namely the tens digit ③ " Scorers" should have " reset" or " set the number of" control functions ④ " Scorers" should have " plus 1" and " minus one" cumulative computing capabilities ⑤ " keyed" should " operation selection " (A)," count (plus one or minus 1) " (B) and reset or cleared (C) three key switch. Upon request, I want to design a double-digit scoring device movement, it has to be set to zero and the number of features, when we give a clock signal, we can give it a plus or minus one, we were using three a switch to control the operation selection, counting and cleared it reasonable to complete the installation targets.
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