ThomasEgi
Comments
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long story short: hands off the brain. long story medium: if you want your brain to trigger stuff you can use an array of on-skin electrodes to measure brain activity. While the recorded data won't make too much sense for the human, it is good enough to train neural networks into delivering reasonable/desired outputs.…
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long story short: there is no easy DIY-coat-at-home way yet. If titanium is what you need, you can buy that stuff online for less than 50 USD, but this won't solve the problem of encapsulating the magnet with it. Metallic coating is a difficult process and requires expensive equipment (even when bought 2nd hand). Coatings…
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I can confirm that from personal experience. If you can afford it, i'd recommend to take some time off and hike around the mountains for a bit (if there are any mountains nearby).
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long story short: no. As you correctly pointed out, they hold an electric field. This is useful for applications where you alter other parameters while keeping your field so you get changes elsewhere, for example voltage. They are not all that suited to measure an electric field. The other thing is, once you implant them…
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welcome to the forum Nova. If you happen to have any connections with laser-welding people/facilities please speak up. It's a much needed thing right now.
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as i said. no numbers yet. feel free to ask your local laser-welding expert for prices
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my only solution so far is having a rigid titanium shell laser weld around the magnet. It provides a perfectly gas and liquid proof case. It's ductile enough to withstand quite a bit of mechanical load and provides at least some protection in case of failures. With properly done laserwelding the thermal impact for the…
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Dental fillings have been experimented with. Cassox was the person who did the most work on this iirc. Results were somewhat okay but there were issues with pitting which would allow bacteria to grow in or something along the lines. Another big thing to keep in mind, not only does your coating need to keep the body away…
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@Daniel Acyrl, or to be more precise PMMA Poly(methyl methacrylate) is rated very bioinert. source: ISBN: 978-0-07-149838-8 (chapter biopolymers). There are only a few bacteria able to break it down but if your body is full of those you have no reason to worry about PMMA failures anyway/anymore. However this does not mean…
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@Erischilde small background info on USB VI as had to learn myself: https://forum.biohack.me/index.php?p=/discussion/comment/4527/#Comment_4527
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@Fealix you may get lucky with some jewellery or glasses-repair specialist.
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i have yet to receive replies from the other companies, but businesses are pretty much closed around this time of the year so yeah, no surprise just yet.
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got a reply from the first company I contacted. Unfortunately they don't produce prototypes and small series. Still got a few more to try. Anyone knows someone with laser-welding equipment and a bottle of argon around?
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if you find some that are rechargeable that'd be great. I'm not aware of any of those.
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@Erischilde Titanium is a very robust material. Used in critical aerospace applications (due to mechanical strength and low weight) and has most excellent properties when it comes to implantation. It's the choice of material for many load bearing implants. It's lifetime within the body is virtually unlimited as the…
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it's a bit semi-offtopic but it appears to be a legit post or at least the idea behind it is pretty decent. For those who skipped the text/links refered to it's about teaching coordination and rythm with haptic feedback. So yeah, can be counted as wearable/haptics. Not even a bad idea to be honest. Even if it doesn't make…
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@ChrisBot no news so far. Guess you'd have to find an industrial entity (existing panasonic customer) to do a querry. My best bet is still on NiMH coin cells simply because they are available
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chip in 120k euro in my budget and i'll be able to work 3 days a week on developing electronics for implants again.
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First of all, RFID is a big playground and there are many different implementations for different tasks. Most commonly (as the name suggests) RFID is just used for identification purpose. This is the biggest market and the RFID tags usually are either non-programmable or programmable. By programmable they just mean you can…
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there's a bit more to it than just the electrodes and servos. Some decent introduction on the whole thing would be those 3 documents. http://techdigest.jhuapl.edu/TD/td3003/30_3-Bridges.pdf http://techdigest.jhuapl.edu/TD/td3003/30_3-Levy.pdf http://techdigest.jhuapl.edu/TD/td3003/30_3-Tenore.pdf DARPA and some lab in…
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Long story short, yes it should be pretty much the same circuit and work. Medium length story: There are some minor details about the current you can draw from cmos chips when operated at the lowest possible voltage. And the comparators internally may not be quite as accurate and give like a few percent "wrong" timing. But…
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The fingerprint thing was just the explanation why you feel alternating magnetic fields a lot better than static magnetic fields. Btw, if there's current (no matter if AC/DC/mixed) you'll always get magnetic fields. @QuantumD0t you can find the source of your sensation by simply wiring up a small wire-loop to an…
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The reason why you mostly feel AC is based upon the way your fingers and fingerprints work. The reason why you have fingerprints is not for getting a better hold on things but to generate vibrations when moving over surfaces. Your fingertips are full of mechanoreceptor cells to detect vibrations. This way you can detect…
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It's not there by default. I used to activate it twice cause I personally hate to be forced to click all the discussions individually when I was not active for two weeks. Appears it got deactivated again for some reason. I did not re-activate it since there might be a reason for its deactivation but if there are no reasons…
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@Jupiter how small would be "small enough". Like you can go to your favorite electronic distributor and buy a reel of 0201 sized led. A full reel usually contains 4000 led's and sells for about 200 bucks. They are about half a millimeter in size. The bigger question is how to connect those reliably in a flexible and safe…
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if you need tubing I'd recommend PTFE or FEP. You can find those for chemical analytic equipment. Available with crazy specs when it comes to purity. Also the EL wire does degrade over time. UV light makes it worse but they only have a limited time of operation on its own before the fade out and get dim. Talking about dim,…
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sorry guys. I started at my new job about a month ago and it turned out to be a very work-intense start. Once I get more than an average of 5h of sleep per day I'll try contacting a bunch of companies doing laser welding. I got those tabs open, just couldn't manage to find time to do it yet.
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I used to live quite close to there, just behind the german border. Now you have to send me a message in a bottle 400km down the rhine. Still, train connections are good and i'm around occasionally when visiting my parents.
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like, you want to talk about something specific or just want to chat? Have you tried to hit irc? ##biohack on freenode. Might take a while to get a discussion started as it's mostly idle but you'll find people to chat with there depending on the time of day.
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First off, you do need some sort of reading device to get anything off an NFC tag. On top of that you'll need a microcontroller of some sort to make the reader do what you need. A simple but bulky solution would be an Arduino (as you found out already). As for a switch, there are many options. There are solid-state relays…