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!
Liked that there was nothing performative about the writing, and a stop at onecartonline continued that genuine quality, performative writing tries to be witnessed rather than read and the difference between performance and substance is huge for the careful reader and this site has clearly chosen substance every time clearly.
Adding this to my list of go to references for the topic, and a stop at blossomhavenstore confirmed the rest of the site deserves the same, definitely the kind of resource that earns its place rather than getting forgotten the moment the next interesting article shows up in my feed somewhere else on the web.
Well crafted post, the structure flows naturally from one point to the next without forcing transitions, and a stop at echoferncollective kept the same flow going, you can tell when a writer has thought about how their content reads rather than just what it contains and this is one of those examples.
Worth recommending broadly to anyone who reads on the topic, and a look at amberoakcollective only confirms that, the rare combination of accessibility and depth in this site makes it suitable for both newcomers and people who already know the area which is hard to pull off in any blog format today and rarely managed.
Generally I do not leave comments but this post merits a small note, and a stop at clevercartzone extended that comment worthy quality, the urge to actively contribute to a sites community rather than passively consume from it is something specific content provokes and this site has provoked that engagement urge from me today.
Reading this gave me confidence to make a decision I had been putting off, and a stop at smartpickcorner reinforced that confidence, content that translates into action in my own life rather than just informing it is content with the highest practical value and this site is generating that action level utility for me lately.
Quietly building a case in my head for why this site deserves more attention than it currently seems to receive, and a look at urbanlatticehub reinforced the case, the gap between quality and recognition is a recurring frustration in independent online content and this site is one of the cases that seems particularly egregious to me today.
Decided to set aside time later to read more carefully, and a stop at amberlighthousegoods reinforced that decision, content that earns a calendar entry rather than just a passing read is in a different tier altogether and this site is clearly working at that elevated level which I really do appreciate as a reader today.
Now appreciating the small but real way this post improved my afternoon, and a stop at driftwoodvalleygoods extended that small improvement effect, content that produces measurable positive impact on the texture of a reading day is content with real value and this site is producing those small positive impacts at a sustainable rate apparently.
Liked how the post handled an objection I was forming as I read, and a stop at trendinggoodsmarket similarly anticipated where my thinking was going next, the rare writer who can predict reader concerns and address them in advance is doing something most online content fails to do despite that being basic editorial work.
Halfway through I knew I would finish the post, and a stop at ambercrestmarket also held me through to the end, content that signals its quality early and then sustains it is content with real internal consistency and this site has clearly figured out how to maintain quality from opening sentence through to closing thought.
My reading list is short and selective and this site is now on it, and a stop at silverlaneemporium confirmed the placement, the short list of sites I read deliberately rather than encounter accidentally is something I curate carefully and adding to it is a real act of trust which this site has earned today.
I learned more from this short post than from longer articles I read earlier today, and a stop at vibrantcartcorner added even more useful detail without going off topic, this site clearly knows how to keep things focused without sacrificing depth which is a hard balance to strike for any writer.
This one is staying open in a tab for the rest of the day so I can come back and re read certain parts, and a look at trendycartcenter suggests I will be doing the same with a few more pages here too, this is going to be a deep dive over the coming hours.
A clear cut above the usual noise on the subject, and a look at velvetharborgoods only made that gap wider in my view, the kind of place that earns its visitors through quality rather than through aggressive marketing or sponsored placements which is increasingly the only way most sites stay afloat across the modern web.
Coming back tomorrow when I can give this a proper read, the post deserves better attention than I can give right now, and a look at amberpetalcollective suggests there is plenty more here that deserves the same treatment, definitely a site I will be exploring properly over the next few days when I can.
Worth saying this site reads better than most paid newsletters I have tried, and a stop at frostharvestgoods confirmed that comparison, the bar for free content is often lower than for paid but this site clears the paid bar consistently and that says something about the editorial approach behind the work being published here regularly.
Worth pointing out that the writing reads as confident without being defensive about it, and a look at royalcartcorner 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.
Honestly this was a good read, no jargon and no padding, and a short look at nextgenbuyhub kept that same feel going which I really appreciated, the writer clearly knows the topic well enough to explain it without hiding behind big words or filler that often gets used to seem clever.
Halfway through I knew I would finish the post, and a stop at radiantmaplestore also held me through to the end, content that signals its quality early and then sustains it is content with real internal consistency and this site has clearly figured out how to maintain quality from opening sentence through to closing thought.
При выборе штор лучше заранее продумать, как они будут сочетаться с мебелью, отделкой стен и освещением. Индивидуальный пошив позволяет учесть все эти детали. Интересная публикация по теме: https://shinastop.ru/stati/poshiv-shtor-na-zakaz-iskusstvo-sozdanija-idealnogo-interera/
A piece that built up gradually rather than front loading its main points, and a look at echopetalbazaar maintained the same gradual structure, content that trusts the reader to reach conclusions through accumulating reasoning is more persuasive than content that announces conclusions and then defends them and this site uses the persuasive approach.
Decided to subscribe to the RSS feed if there is one, and a stop at crystalfernstore confirmed that decision, content that I want delivered to me proactively rather than just remembered when I have time is content that has earned a higher level of commitment from me as a reader looking for reliable sources.
Skipped past the first paragraph thinking it was setup and had to come back when the rest referenced it, and a stop at qualitycartarena similarly rewarded careful reading from the start, content where every paragraph carries weight is content I now know to read from the beginning rather than skipping ahead.
Just dropping by to say thanks for the effort, it does not go unnoticed when a writer cares this much about the reader, and after I went through quickcartworld I was certain this is one of the better corners of the internet for this particular kind of content which is genuinely refreshing.
Really thankful for posts that respect a reader’s time, this one does, and a quick look at mysticmeadowgoods was the same, no need to scroll through endless intros just to get to the actual content, that approach alone is enough reason to come back here regularly for the kind of writing offered.
Came across this through a roundabout path and now it is on my regular rotation, and a stop at frostharbormarket sealed that decision, the open web still produces serendipitous discoveries when you let the citations and references guide you rather than relying purely on algorithmic feeds for new content recommendations always.
Honest take is that I will probably forget most of what I read online today but this post is one I will remember, and a stop at sunwovenmarket kept that same memorable quality going, certain writing leaves a residue in the mind in a way most content simply does not manage.
A piece that exhibited the kind of patience that good writing requires, and a look at hyperdealhub continued that patient quality, hurried writing is easy to spot and this site reads as having been written without time pressure which produces a different feel than the rushed content that dominates much of the modern blog space.
Genuinely changed how I think about a small piece of the topic, which does not happen often online, and a look at frostlaneemporium added another nudge in the same direction, the kind of writing that earns a small mental shift rather than just confirming what you already thought before reading is a sign of careful thought.
Appreciate the practical examples, they made the abstract points easier to grasp, and a stop at goldenharvestlane added more of the same, this site clearly understands that real examples beat empty theory every single time which is the mark of a writer who knows their audience well and respects their time.
Easy to recommend, the content speaks for itself without needing additional praise from me, and a stop at stylishgoodscorner only adds more reasons to send people this way, the kind of generous resource that benefits its readers without demanding anything in return is increasingly rare and worth recognising clearly today across the broader open internet.
A genuine pleasure to find a site that publishes at a sustainable cadence rather than chasing the daily content treadmill, and a look at bluecrestemporium confirmed the careful publication rhythm, sites that prioritise quality over frequency are rare and this one has clearly chosen the slower pace which I appreciate as a reader.
Took a quick scan first and then went back to read properly because the post deserved it, and a stop at urbancartzone kept me reading carefully too, the kind of writing that earns a slower second pass rather than getting skimmed and forgotten is something I value highly when I happen to find it.
Decided this was the best thing I had read all morning, and a stop at infinitygoodscorner 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.
Vague feelings of recognition kept surfacing as I read because the writing names things I have been thinking, and a look at crystalharborgoods produced more of those recognition moments, content that gives shape to private intuitions is content that makes me feel less alone in my own thinking and this site has that effect.
Strong recommendation, anyone interested in this topic owes themselves a visit, and a stop at stylishtrendhub extends that recommendation across more of the site, this is the kind of resource that makes me more optimistic about the state of the open web than I usually am these days actually for once which is genuinely refreshing.
Felt like the writer was speaking directly to someone with my level of curiosity, neither talking down nor showing off, and a stop at globalgoodscorner kept that comfortable matching going, finding writing that meets you where you are rather than asking you to climb up or stoop down feels great every time it happens.
Really like the way the post resists reaching for cliches that would have made it feel generic, and a quick visit to blossombaygoods kept that fresh feel going, original phrasing and unexpected metaphors are signs that the writer is actually thinking rather than just stitching together familiar phrases into the appearance of content.
Just want to flag that this was useful and not bury the appreciation in caveats, and a look at cloudpetalmarket earned the same direct praise, recognising good work without hedging it with criticism is something I try to practice because over qualified compliments tend to read as backhanded and miss the point sometimes.
Now wishing more sites covered topics with this level of care, and a look at goldenpetalmarket extended that wish across more subjects, the rarity of careful coverage on most topics is a problem and this site is one of the small antidotes to that broader pattern of casual or surface treatment of complex subjects.
Skipped a meeting reminder to finish the post, and a stop at freshdealstation held me past another reminder, when content beats meetings the writer is doing something extraordinary because meetings have institutional support behind them and yet good writing can still occasionally win that competition for attention which I find heartening today.
Appreciate the work that went into laying this out so clearly, every section earns its place without filler, and a look at mysticbaystore confirmed the same care, definitely the kind of place that deserves a return visit when the topic comes up again later in the future or for any related question.