![](https://images2018.cnblogs.com/blog/1363834/201807/1363834-20180718173156196-112893911.png)
共阴高电平亮,低电平灭,公共端,阴极并联
共阳低电平亮,高电平灭,公共端,阳极并联
![](https://images2018.cnblogs.com/blog/1363834/201807/1363834-20180718180738083-1049771265.png)
![](https://images2018.cnblogs.com/blog/1363834/201807/1363834-20180718181646794-84802439.png)
外设~数码管,led,蜂鸣器等
main.c
![](https://images2018.cnblogs.com/blog/1363834/201807/1363834-20180719171348860-780257907.png)
smg.c
![](https://images2018.cnblogs.com/blog/1363834/201807/1363834-20180719171444407-1355736205.png)
smg.h
![](https://images2018.cnblogs.com/blog/1363834/201807/1363834-20180719171606387-1098748358.png)
posted @
2018-07-18 17:36
踏实,勿忘初心
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