金属探知機の作り方 How to make Metal detector
金属探知機を試作したので、作り方を紹介します。 I have made a prototype metal detector, so I will show you how to make it. 回路図を表示しています。 00:30 The circuit diagram is shown. [music] YouTube audio library Cruise Sting Whirlwind Love Wistful Harp
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How to make a simple and stable metal detector - JLCPCB
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