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键盘扫描,4*4矩阵键盘,外接89s51串行口输出

于 2022-02-25 发布 文件大小:1.40 kB
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键盘扫描,4*4矩阵键盘,外接89s51串行口输出-keyboard scan, 4* 4 matrix keyboard, external serial port output 89s51

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