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Found this on Russian site, my friend maked one and he say it's working good.
This md have some kind of discrimination: For iron led light is red, for non fero is blue.
Similiar to Pirat Pi with detection distance, so i will make pinpointer from this.
https://www.youtube.com/watch?v=L4Sa_8C09MA
Download link:
http://signalsam.in.ua/publ/metalloi...ersija/1-1-0-5
This md have some kind of discrimination: For iron led light is red, for non fero is blue.
Similiar to Pirat Pi with detection distance, so i will make pinpointer from this.
https://www.youtube.com/watch?v=L4Sa_8C09MA
Download link:
http://signalsam.in.ua/publ/metalloi...ersija/1-1-0-5
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