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发现淘宝买的这CH340N模块不好使，很多板子都没法收到信息，但是led使劲闪，是不是电阻太大？
102=1K，电阻太小吧，电流大，负载重，LED灯刺眼。
@aozima
给大佬点赞，改成10K之后，LED没那么刺眼了，与全志官方的V853开发板通讯也正常了．
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