DIY PIC12F1840 microcontroller based metal detector project.
Teemo:
Hello!
I just wrote a long story and it just dissapeared, I'm not going to write it again.
I just share my project. If you have questions about it, I will be happy to answer.
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I'd appreciate any feedback.
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Teemo
GoldDigger1950:
I noticed one thing. Your coil is labeled in uf and should be in Henries.
Posted on: December 15, 2012, 08:07:57 PMAlso, if you want some help with the design from others here, you should include the source code, not just the hex file.
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Teemo:
Ok, thanks. Of cource it should be uH.
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xavier:
This is quite interesting so I think that I'll build one and see how well it works . Maybe I'll even be able to give you some pointers on it.
Posted on: December 15, 2012, 08:49:10 PMMaybe not when I want to get the hex file I get error 404
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Teemo:
I fixed the link for the hex file. Thanks for pointing that out.
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xavier:
Quote:Posted by TeemoI fixed the link for the hex file. Thanks for pointing that out.
No problem
I'll download the Hex file now now but I cant tell when I'll have time to put it together. You should tell us a bit more about the coil, like what is a good size and how many turns to use, what gauge wire did you use on your proto type and how well did it work.
All the best
Xavier
Posted on: December 15, 2012, 09:27:54 PMOK got it :)
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GoldDigger1950:
See? Already the constructive criticism is helping you towards perfection. Now, about the source code . . .
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Teemo:
Coil that I made is about 20cm dia and 27 turns of 0,75mm2 plastic insulated electrical installation wire (about 20meters if I remember correctly). The inductance is about 90uH. I made coil frame from wood.
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GoldDigger1950:
Ask our member and moderator Xavier to point you to his coil making instructions. His coils look like they were factory made by a detector manufacturer. They look really good and aren't that hard to make.
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xavier:
Hi Teemo
What Mosfet did you use? I want to have it like you have it in order to be able to give you constructive feed back. I have most of the components ready for assembly just the PIC and the mosfet that are out standing. Will see if I can do the pcb tonight. Right now I need to make the coil for my VLF :)
All the best
Xavier
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