I kinda pictured something as discreet and elegant as:
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Gonna also want a way to keep that mosfet from burning your neck 
Oh, that’s but the price of fashion! 
Jokes aside, the same principle applies to both this glorious pendant and to embed the coil in a jacket. or a multitude of other simmilar approaches.
Yet this was just a thought upon a step that should only come after the main bits are done.
Maybe better moved out before I derail this thread? 
Bumping this thread, and asking for instructions if anyone ever actually completes this, because that shit looks so tight. I want.
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Hello everyone! I’m glad to see that people are also rallying around this! (I almost thought that this wasn’t that great)
I didn’t even think of this but that could definitely be an awesome project. I was ideally thinking about having an LED ring somewhere on the neck or if we’re pushing, the temple (but that probably won’t happen) . I don’t know anything about implanting but even I kind of knew that the neck would be very very difficult.
Perhaps we could focus on one in the arm and when we become more confident, could look again at somewhere near the neck?
This seems very interesting! Also I’ll add a quick mockup of what I think could be done.
However, like I said earlier, the implanting process for something like this is very complicated and also as someone else said, the skin on the neck and side of the head is very thin.
I was trying my best to keep the LED Ring’s Flex-PCB one sided to keep costs down and I was thinking that the reciever coil would be an actual coil but that’s a good idea
Thanks! I’m new to this so I’m happy that people are coming in with their ideas. I think we could be onto something… Might be a new industry?
Exactly what I was thinking! I think this is the best approach
I was hoping to power this with a small battery (maybe two cells) and a small driver in a case which can be recharged with USB C for example
Edit1: Didn’t realise shift+enter just saves the comment when I wasn’t finished typing.
Edit2: adding this bit here^
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I would much rather implant myself on the temple than on the neck.
It has less possibilities of things going wrong.
Less chance of migration.
Moves much less which accounts for an easier healing process.
Less risk of rejection too…
The tricky bit is to power it.
Running wires under the skin is doable, but highly prone to going wrong.
So I would advise against it unless strictly necessary.
The main reason to have the wires in this project seems to be to allow the charging portion to not interfere aesthetically with the LEDs. (Please correct me if I’m wrong)
If this would do something more than glow, I would say we do need a perfect coupling (for data transfer, encryption, etc), so that seems reasonable.
But when it’s only LEDs… they require so little power that an imperfect coupling is good enough!
Take a look at @Az_F 's pictures as a starting point!
In which case I thing adding the wire leading to the charging coil will only make implanting harder, rejection more likely, and the odds of the implant failing over time become much higher.
Having the right charging gear might allow us to charge from some distance anyway. so that’s some good news! ^^
So yeah, I was hoping that the trasmitter coil could be smaller and directly next to the reciever coil so that not too much power is required.
That massive transmitter coil takes up 12V so if it’s much smaller and is more localised, less power is needed. Also means that the driver can be less powerful and could probably run less hot too.
Perhaps a mini version of whats inside a induction cooker but scaled right down could be used as a driver?
That was the main hope so yeah
Yeah, that’s understandable.
I do have another idea, that if somehow we get some supercaps on the LED Ring, it could run for perhaps 20 mins and then you would apply the external driver charger to it and charge it briefly and then it could work for another 20 mins? However, with this, theres now supercaps (which are most likely electrolytic and are quite big) which I’m trying to avoid since they could blow up, as well as the fact that they’re often quite big.
I think wires under the skin might be our best bet but then again, I’m no were near experienced.
Some considerations:
If the goal is the arm, and without the connection wire going through the wrist, that should be ok.
Ultimately we would be talking about implanting a flexie about 10cm long, 2cm wide at the ends. (both coils and LEDs + some wiring in the middle, all within the same encapsulation).
my right hand has a flexie almost 7cm long, more than 1cm wide at the base.
perfectly viable.
an implant about 2cm in diameter on the temple? requires skill from the installer, either way highly doable.
On the neck, we just add some (much) higher risk of rejection and migration. but still highly doable.
Now…
Add a wire, so we have a ring (LED) on the temple and the coil behind the ear or head…
complex (borderline surgical) procedure that no piercer would do in the UK, very few would in the US (it becomes illegal in most places due to the need of a scalpel). Might leave a nasty scar. has high chance of rejection…
But once you get through all of these hurdles, it’s probably gonna work well.
On the neck, or over the wrist… or on any high mobility/bend/stretch areas: You have all of the above issues, + a higher risk of migration, much higher risk of scarring and rejection. Even harder to find someone to perform the procedure…
And then, once you got all that in, there’s a good chance it might stop working after a couple of months because of stress on the wiring and/or connectors. 
Hats!
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How could I not have thought of that before? o.o
It even solves the problem of the coil having to be flexible! AND adds room for a large power source as well!
Ok, guess I’ll take a more active role now in developing this as well!
Top hats!
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I think making an entirely wearable solution that you just attach to the skin with adhesive is a good first milestone for this project.
Great idea !!!
Yep! I’m going to start with this!
I’m certainly looking into the hat solution.
Could have a reciever coil in the cheek, nearer the jaw that leads up to the ring on the temple and abandon the neck all together as the driver could be in the hat
Maybe behind the ear?? Actually that’s much better as it could be hidden by longer hair (just saw that cheeks are a definite no go
Edit: there’s already some Detroit: Become Human cosplay stuff but that’s not going to stop me as… to be honest, it looks cheap and rubbish.
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Cheeks are a bad implant area.
They move a frigging LOT and with strong muscles that will put any implant there through hell.
When implanting something, even if flexible, you probably want to avoid any regions where there’s a lot of movement.
So if you want a 2 part implant with LED’s on the temple, your best bets to place the second part are either high on the back of the head, or behind the ear.
That said, Given that you can actually use a 12V source comfortably on the hat, I don’t think a temple implant would require a 2 part design.
Just sit the LEDs directly on top of the coil!
I’ll put some time towards this over the weekend.
Hopefully by then I’ll have sorted some of the white elephants I’ve got in my life at the moment.
Yep. first step for me is to get a decent LED ring, sit it on a receiver coil. slap with silicon glye to the temple, and try to light it up through a hat
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Have the reciever coil right behind the LEDs in one neat coin shaped implant. In fact having the coil in the temple is perfect placement for a hat coil based on my tests from earlier.
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Exactly what I’m basing myself off from!
If I have time I will make a flexible coil in the brim of a beanie with a sticky led ring just to see how much power is needed 
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