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M5 StickV がPCから認識できない問題と解決方法

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M5 StickVをようやく入手したけどもPCにつないで認識できない、、という悲しい状況を解決できました。

状況
 不明なUSBデバイス(デバイス記述子要求の失敗)」や「不明なデバイス」
原因
 USBポートの電圧低下。M5 StickV 接続後に4.9V未満か
対策
 ACアダプタ付きのUSBハブ利用で解決。

テスト画面や起動時の音を小さくする方法は ブログに上げておきました。

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