Satur9

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Satur9
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PCB Design, Electrical, Microcontroller Coding
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he him his
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Comments

  • Excellent news. I look forward to seeing how much exposure they get through the skin. I know infrared travels through skin basically unhindered, but UV not so much.
  • I mean, It seems like the use case is a lifting magnet, not a sensing one. I used a field strength calculator at 3mm distance and came up with 0.01lbs of pull force. You could lift a few paper clips or a screw with that. I agree with Cassox that the…
  • AFAIK the Ni-Cu-Ni coating with the biocompatible ones on top is pretty standard. Really, the more coatings the better, as long as it doesn't make the magnet too large overall. Someone with more knowledge will be able to tell you more, but I re…
  • Hey @Johnny3D Still working on this? I just purchased some of that Eu:SrAl2O4 glow powder and was pleasantly surprised. A few seconds of UV exposure kept it illuminated for a few minutes. I would love to try making an implant with it.
  • @trybalwolf Are you going to hardwire it, or use batteries? Also, the metal body of the safe would probably attenuate some of the field and reduce the read range. Since the safe will be stationary, you might want to situate the antenna off to the …
    in RFID Gun Safe Comment by Satur9 May 11
  • Definitely that. You just need to be selective in your choice of door strike to prevent tampering. Also you might want it to be "normally open" so you can get in if you lose power. I'm a huge fan of the HF. In this use case opening your gun sa…
    in RFID Gun Safe Comment by Satur9 May 10
  • @Dani123 I'm not telling you how to live your life, but that came across as really hostile.
  • You could use something like this reference design for communication between the implant and a phone: http://www.ti.com/tool/TIDA-00217 Put these two chips (NFC controller and low power MCU) on a 0.6mm thick PCB with some kind of convex el…
    in New electrodes Comment by Satur9 May 6
  • So the idea is to implant a thin puck of biodegradable material (like PLA) that has been impregnated with a drug or nootropic so that it can be delivered slowly over weeks or months instead of ingested every day? That sounds rather invasive. Do you …
  • Hey @tjom, good to have you join in on the conversation. I don't have a medical background, but I have some experience with implant recovery. I had an xNT implanted in that spot a few years ago. Bruising and soreness is definitely expected. …
  • Hey @Bobtheguy, Welcome! You're on the right track, but I do not think that magnet is appropriate. The biohack.me community has come to the conclusion that gold plated magnets are not reliable enough for implantation. Some of the reasons are: …
  • I had been occasionally checking in on the Grindhouse Wetware Facebook page to see what you were up to, but I much prefer YouTube. Thanks for the comprehensive update and all the work you do.
  • I definitely think this is a cool idea, I'm not trying to dissuade you. I just feel that if you're going to do it, then do it right. Let's talk about it. Even 2cm of height is pushing the limit of possibility, at the very least you would want t…
  • Hey Naikoda If you're planning for eventual implantation, you should consider prototyping with those parts and then eventually moving to a custom PCB using exclusively surface mount components. If you're hand soldering something you plan to imp…
  • Thanks for the testimony @aixre. That sucks that you had to deal with a failure. At least it didn't cause issues. @dr4gon I don't think toxicity is something we have to worry too much about. With the sheer quantity of NdFeB we'd have to pump …
  • My understanding is that a larger magnet reduces the field sensing capabilities. I have a similar magnet (3mm x 1mm N52). I seldom get any use out of sensing a DC source or another magnet because my nerves quickly acclimate to the consistent pull an…
  • @ThermalWinter You had mentioned doing more research about magnets dissolving, and I'm also curious. Even with lifting magnets, it's such a small amount of NdFeB that it likely doesn't matter. We mine as well know for sure, though. All the re…
  • Thank you for the details @ThermalWinter, it is very much appreciated. My friend has now seen this post and is much more comfortable with the prospects. There were too many unknown unknowns. We'll both keep an eye out for signs of failure and I…
  • So far my understanding is: 1) Tiny surface imperfections in the coating allow your salty bodily fluids to penetrate the magnet and gradually degrade it's structural integrity. 2) A potential energy difference can form between the outermost TiN …
  • Definitely iodine or chlorhexidine pre-procedure. My statement about updating the Wiki stands. I don't know if it's common practice, but I was looking for after-care recommendations and I followed the advice listed there. If we want to prevent …
  • This company called Viatomtech makes a wearable that handles most of the vital signs you're interested in: https://www.viatomtech.com/checkme-o2 I can't find very much information on it, but reviews appear good, and it's been available for mo…
  • Saw a recent post on the DT forums relating to this: https://forum.dangerousthings.com/t/unable-to-overwrite-nfc-chip/3523 The verdict seems to be that it has little chance of success, and if it does work irreversibly activates the lock bits …
  • The only implant I've seen that allows you to check a vital sign is temperature sensing RFID tags in glass capsules. Unfortunately, most of them are configured to operate at 134kHz, so you need a special reader (can't use NFC on your phone at 13.56M…
  • Most of my experience is in the realm of implants, so maybe others can weigh in on other types of augmentation. I get a good amount of use out of my RFID and magnet implants. I primarily use RFID tag implants for access control (phone and car) …
  • Hey UnkownVoice, welcome! I'm a little confused about what exactly you would define as an "optimization". Are you limiting your inquiry to "Prosthetics, wearables, and haptics", or would implants, genetic mods, and supplements/nootropics count?
  • Just to clarify, the VivoKey Spark is the smaller variant in a biocompatible glass capsule. I suspect Moonman was referring to the Flex One, which does have a more involved install process. Personally, I'm a huge fan of Amal and DT. I suspect h…
  • I'm down to keep some decrepit old threads on last ditch life support in a community this small. I'm near Philadelphia.
  • @Cassox said: It's seldom beneficial. It's better to keep it clean and dry. It will heal much more quickly. Maceration often leads to failure. If regular application of triple anti-bac isn't the best course of action for after-care becau…
  • Agreed. Remagnetizing in-situ does not seem viable. I've learned more about the manufacturing process of Nd magnets since my initial post. It seems you could remove the magnet from it's installation spot, remagnetize it, then reimplant without …