巧用1個GPIO(單晶片一隻腳)控制2個LED顯示4種狀態

資料來源: https://mp.weixin.qq.com/s?__biz=MzkxMTE3MTQ2Nw%3D%3D&mid=2247484294&idx=1&sn=894ec13cbc673bb889bf00e8f66a2234&scene=45#wechat_redirect 

GITHUB: https://github.com/jash-git/Jash-good-idea-2020127-001/tree/master/%E5%B7%A7%E7%94%A81%E5%80%8BGPIO%E6%8E%A7%E5%88%B62%E5%80%8BLED%E9%A1%AF%E7%A4%BA4%E7%A8%AE%E7%8B%80%E6%85%8B

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