New version (Beta):
In this version this metal detector works with a smartphone or without a smartphone with the possibility of adding an LCD screen. Now Spirit Pi is more stable and reaches more depth. The diagram and the PCB can be found below, also in the file you will download will be gerber file in case someone wants to order the PCB on the JLCPCB page. JLCPCB is a page where we can order the PCBs we want for a very low price, we just have to upload gerber file of the circuit and that’s it.
News:
Now in this detector we have 3 buttons: “+”, “-“, and the “M” menu. With these buttons we can adjust the pulse width, sensitivity and frequency. Instead of the TL072 amplifiers we will use NE5532. The micro controller will use an Arduino nano. The coil is still 25 turns with 0.5 mm wire and the radius 20 cm.
Components:
The components I usually buy on Aliexpress for the low price. In this way we can make a good metal detector and spend little money. Below I will leave the links where you can buy these components to make this metal detector!
Honest reaction is that I want to send this to a friend who would benefit from it, and a look at blog66course added more material I will pass along too, the impulse to share is the strongest signal I have for content quality and this site is generating that impulse cleanly across multiple posts.
Started taking notes about halfway through because the points were stacking up, and a look at oakridgeemporium added enough material that my notes file grew further, content that demands note taking from a passive reader is content with substance and the writers here are clearly producing that kind of work consistently across topics.
Now feeling slightly more optimistic about the state of independent writing online, and a stop at blog44thousand extended that quiet optimism, sites like this one are the reason I have not given up on the open web entirely and finding them occasionally renews the case for paying attention to non algorithmic content sources today.
Now feeling mildly impressed in a way I do not quite remember feeling about a blog in a while, and a stop at swiftroot extended that mild impression, content that produces specific positive emotional responses rather than just neutral information transfer is content with extra dimensions and this site has those extra dimensions clearly.
Adding this site to my regular reading list, the post earned that on its own, and a quick stop at blog44imagine sealed the decision, the kind of place worth checking back with from time to time because it consistently produces material that holds up against a critical reading too which I really value.
https://monetoss.ru/
Thanks for the clean writing, no broken sentences and no awkward translations like some other sites have, and a quick stop at blog33boy kept that polish going nicely, it really does make a difference when a reader can move through a page without tripping on every line or going back to reread.
Felt the writer was speaking my language without trying to imitate it, and a look at jeannunez continued that natural fit, when a writers default voice happens to match what you find easy to read the experience feels frictionless and that is something I notice and remember about specific sites going forward.
Closed several other tabs to focus on this one as I read, and a stop at fastgoodscorner held my undivided attention the same way, content that earns full focus in an attention environment full of competing pulls is content doing something genuinely well and the team behind it deserves recognition for that achievement consistently.
Just wanted to say this was useful and leave a small note of thanks, and a quick visit to blog33reach earned a similar nod from me, the small acknowledgements add up over time and represent the real economy of trust that good content runs on across the open and increasingly fragmented modern internet.
Better signal to noise ratio than most places I check on this kind of topic, and a look at logiclens kept that going, every paragraph here carries something worth reading rather than padding out the page to hit some arbitrary length target that search engines reward but readers ignore as soon as they notice it.
Now setting up a small reminder to revisit the site on a slow day, and a stop at softsteppe confirmed the reminder was a good idea, planning return visits is a small organisational act that signals trust in ongoing quality and this site has earned that planned return through consistent performance across the pieces I have read so far.
Worth marking the moment when reading this clicked into something useful for my own work, and a look at softcrown extended that practical click, content that connects to my actual life rather than just being interesting is content with the highest kind of value and this site is generating that connection at a high rate.
Took the time to read the comments on this post too and they were also worth reading, and a stop at silvergrovegods suggested the community quality matches the content quality, when the conversation around a piece is as good as the piece itself you know you have found a real corner of the internet.
Glad the writer did not feel the need to argue with imaginary critics in the post itself, and a stop at versatrove kept the same focused approach going, defensive writing wastes the reader time and confidence on positions that did not need defending and this post has clearly avoided that common failure.
A relief to read something where I did not have to fact check every claim mentally, and a look at ordernest continued that reliable feeling, sites where I can lower my guard and trust the content are rare and this one is earning that trust paragraph by paragraph through consistent careful work behind the scenes.
Reading this with a fresh mind in the morning brought out details I might have missed in the afternoon, and a stop at blog66finally earned the same fresh attention, content that rewards being read at full attention rather than at energy lows is content with real density and this site has that density consistently.
Bookmark earned and the bookmark feels like a permanent addition rather than a maybe, and a look at blog44ground confirmed that permanent status, the difference between durable bookmarks and ephemeral ones is something I have learned to feel quickly and this site triggered the durable feeling almost immediately during my first read here.
Just sat with this for a bit longer than I usually would because the points are worth thinking about, and after softorbit I had even more to chew on, the kind of post that nudges your thinking forward without forcing the issue is something I have always appreciated in good writing online.
Left me wanting to read more rather than feeling burned out, that is a good sign, and a look at drilldomain confirmed there is plenty more here to explore, the kind of writing that builds appetite rather than killing it which is a rare quality on the modern open internet today across most categories of content.
Decided to write a short note to the author if there is contact info anywhere, and a stop at blog66hang extended that intention, the urge to thank the writer directly is a strong signal of content quality and this site has triggered that urge in me today which is a fairly rare event for my reading.
Now planning to recommend this site in a context where my recommendations are taken seriously, and a stop at website66she confirmed I should make that recommendation soon, the small but real act of recommending content into spaces where my taste matters is something I take seriously and this site is worth the recommendation.
Coming to this with low expectations and being pleasantly surprised by the substance, and a stop at althiasapparel continued exceeding expectations, the recalibration of expectations upward across multiple positive readings is one of the actual rewards of careful browsing and this site is providing that recalibration at a steady rate apparently.
Worth pointing out that the writing reads as confident without being defensive about it, and a look at ketsi extended that secure tone, content that does not pre emptively argue against imagined critics has a different quality from defensive writing and this site reads as written from a place of real ease.
Over the course of reading several posts here a pattern of quality has emerged, and a stop at sparkpixel confirmed the pattern, the difference between sites that hit quality occasionally and sites that hit it consistently is huge and this site has clearly demonstrated the consistent kind through what I have read this morning.
Pleasant surprise, the post delivered more than the headline promised, and a stop at trustnest continued that pattern of under promising and over delivering, the rarest combination on the modern web where most content does the opposite by promising the world and delivering thin recycled summaries instead each time you click on something interesting.
Nice and clean, that is the best way to describe the writing here, no clutter and no wasted words, and a quick visit to radarhaven kept that going, I appreciate when a site treats its readers like people who can think for themselves without needing constant hand holding through every paragraph.
Picked up two new ideas that I expect will come up in conversations this week, and a look at blog33pain added another, content that arms me with talking points rather than just filling time is the kind that provides ongoing value beyond the moment of reading and this site is generating that kind of ongoing value.
Now realising this site has been quietly doing good work for longer than I knew, and a look at datasavanna suggested an archive worth exploring, sites with deep archives of consistent quality represent a different kind of resource than sites with viral hits and this one looks like the durable kind based on what I see.
Well done, the kind of post that makes you slow down and actually read instead of skimming for keywords, and a look at blog44view kept me reading carefully too, that is a sign of writing that has been crafted rather than churned out for an algorithm to see today and tomorrow.
The tone stayed consistent across the whole post which is harder than it looks for longer pieces, and a look at softsphere continued the same voice, this kind of editorial consistency is a sign of either a single careful writer or a tightly run team and either is impressive today across the broader media environment.
Decided this was the best thing I had read all morning, and a stop at hydrodomain kept that ranking intact, ranking my reading is something I do mentally throughout the day and the top rank is competitive and not easily won but this site won it without needing to overstate its claims for that.
Worth saying that the quiet confidence of the writing is what landed first, and a look at pixelgrid continued that quiet quality, confident writing without the loud display of confidence is a rare combination and this site has clearly developed both the knowledge and the editorial restraint to land that combination consistently.
Found a couple of useful angles in here I had not considered before reading carefully, and a quick stop at urbancrestgoods added more, this is one of those sites where the value compounds the more you read rather than peaking at one viral post and then offering nothing else of substance afterwards which is common.