本帖最后由 chenqiang10 于 2019-2-28 20:34 编辑
1.LED---------------------------------------https://bbs.21ic.com/icview-2630406-1-1.html
2.按键--------------------------------------https://bbs.21ic.com/icview-2630418-1-1.html
3.串口--------------------------------------https://bbs.21ic.com/icview-2630652-1-1.html
4.定时器-----------------------------------https://bbs.21ic.com/icview-2631080-1-1.html
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