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5 年
干货 | 教你用 Arduino 制造简易金属探测器
金属探测器,听上去有点高端,下面我们只用一个 Arduino、10 米长的铜丝线、一个 100 欧电阻和一个无源蜂鸣器来制造它。 可以根据需要将探测器设计成各种尺寸和形状,不同之处在于线圈的制作。虽然这款金属探测器还没有达到寻宝的需求,但做成小型手持 ...
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