How to make simple metal detector at home || DIY

Please watch: "Make wireless speaker using led light DIY no bluetooth required || Li-Fi technology" https://www.seevid.ir/fa/w/m_SUMOcaR9Y --~-- Hello guys, In this video I will show you how you can make a simple metal detector using ic 555 at home....these is very simple easy to make anyone can make this at home.....

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• #metal_detector
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• #metal_detector_using_555_ic