https://blog.youkuaiyun.com/Ganmingruzh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/Ganmingru/article/details/152128260https://blog.youkuaiyun.com/Ganmingru/article/details/152128260GanmingruFri, 26 Sep 2025 22:50:26 +0800https://blog.youkuaiyun.com/Ganmingru/article/details/152075301https://blog.youkuaiyun.com/Ganmingru/article/details/152075301GanmingruThu, 25 Sep 2025 21:56:56 +0800B，DIR低，传输方向由B->A。至于输出，取决于输入，输入低输出低，输入高输出高；共阳极数码管，低电平点亮，dp段为最高位，dp g f e d c b a，a段为最低位。先点亮一个灯，然后用for语句里做移位操作，赋值给P0口，（这里采用0X01左移然后取反实现流水灯的效果），在循环里写上延时函数控制闪烁频率。继电器实验，NC常闭，NO常开，COM公共端，RELAY低电平，继电器吸合。多位数码管显示，位选独立控制，段选连一起。]]>https://blog.youkuaiyun.com/Ganmingru/article/details/152051336https://blog.youkuaiyun.com/Ganmingru/article/details/152051336GanmingruWed, 24 Sep 2025 21:59:05 +0800