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- SCM
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- Update:
- 2012-11-26
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- lxgui_413
Description: AT89S51 using the parallel port P1 then 4 × 4 matrix keyboard to P1.0-P1.3 as input lines to P1.4-P1.7 for output line in the digital control button displayed on each of the "0-F "serial number.
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键盘扫描程序.txt
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