数码管显示4×4键盘矩阵按键.zip

上传者: 36613247 | 上传时间: 2021-05-28 18:51:07 | 文件大小: 45KB | 文件类型: ZIP
矩阵按键数码管显示,51单片机例程代码,非常直观简洁,利用行列反转扫描法,先扫行在扫列,取高低电平,先让高四位为高电平,再让低四位为低电平

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