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 4197| 7
 
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[求助] ArduinoNano扩展板怎么用? | 
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刚买的ArduinoNano和扩展板,为什么上传程序后小灯没反应? 主控:https://www.dfrobot.com.cn/goods-754.html 扩展板:https://www.dfrobot.com.cn/goods-64.html 灯:https://www.dfrobot.com.cn/goods-68.html 程序: ![]() 上传后灯不亮,换一个灯也不行。怎么办?  | 
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