Do you think you could run a simple file server on it?
I wouldnt use spiffs use littlefs instead.
And an example of using it for a web server
2 Likes
Wild to read all this, love the project idea. Would it be accurate to say that the current state is reflected in the OP, with time of researchers being the current limit?
I was following some of the experimentation of trying to get some capacitors to workā¦ Most of it was well over my head so I kept my nose out of it lol
But getting enough performance out of small enough and āsafeā enough components seemed to be a legitimate struggleā¦ let alone source them
Forgot to mention that I designed a new version thatās much smaller and should have similar or better performance. Can expect 400mA at 5V. Itāll arrive in a day or two. Gonna bring some to grindfest.
Itās 0.6mm thick with the tallest part being 1mm. The total size is 31 x 26mm. Miana already made an LED add on board.
8 Likes
Whereās that at?
Someday, something will happen at a sane~ish distance for me.
1 Like
Tehachapi California
1 Like
Well thatās only a delightful 23 hr and 45 minute drive. Assuming no stops, road construction, and infinite bladder size.
Dammit.
2 Likes
How viable is it currently?
Is this just the Qi power component, no data or transmit module yet?
Regardless it looks sexy and I canāt wait
3 Likes
The previous version that I shared was pretty good, but it was really just a proof of concept. Iāve refined and miniaturized the design a bit. Iām kind of pushing the limits of how small a Qi antenna can be though, so weāll see.
Yeah, this is simply for power delivery. I made it for the bodybytes, but it can be used for a lot of different projects. I may even populate a bunch on my CNC Pick & Place and sell them to hobbyists. Not sure. For now though theyāre coming to grindfest and people might have other implant ideas they would be suitable for.
I donāt have the bandwidth, desire, or expertise to finish this community project myself. I said from the beginning Iāll handle the Qi charging and manage the board design, but people need to settle on the features, chipset, firmware, and software they want. Interested parties with staying power are always in short supply though. @anon65808771 and @NiamhAstra are still involved, mostly communicating on the discord. Xander52 has been really active with the project lately (not sure if theyāre on here).
Depending on the encapsulation material we could get a test implant going with the existing vocore board hooked up to this Qi receiver. Amalās biopolymer wonāt be viable until we have all the kinks worked out and can make the whole thing on a flex PCB. Thatās a ways off though.
Iām going to grindfest next week so Iām going to chat with Cassox about his encapsulation method. I donāt have a huge amount of confidence in it, but something like that would be necessary for earlier revisions of this implant.
If anybody is really interested in helping out with the development feel free to post here, on the discord, or message me directly.
5 Likes
Thatās validā¦ unfortunately I have nothing meaningful to contribute besides a curious, friendly and sarcastic presence
Just because I only ever understood so much of where the project stood
Was there ever a solution to how to transmit through the skin? BLE, NFC, WIFI?
I just want a 1tb sd card in my arm lol
I was laughing other dayā¦, in theory if this project or of similar scope are successfulā¦ we are going to jump straight from the kilobyte range directly to terabyte range of storageā¦.
4 Likes
WiFi is the target right now. It will make it through a few millimeters of tissue. I doubt the range will be more than a few meters though. Kind of works in our favor as a virtual security feature. It will affect the data rate, but we need to do testing to see. Thatās why I want to get a prototype implant together ASAP so I can try the WiFi out.
2 Likes
Lol itās so little. Gotta measure some antenna characteristics and then order parts. Hopefully I can get it sorted by Wednesday.
9 Likes
Depends a lot on the kit youāre using but if the goal (my personal goal) is to just work with my phone which is on my person, itās perfect. One thing to consider is controlling the signal output strength on the WiFi as well. Reducing output power may help improve data rates at close range.
3 Likes
What are the odds of getting to use the Broadcom wifi 6e chips (and software for them) in this?
1 Like
Low honestly because itās a brand new chipset and the availability and support will be limited. As it becomes more accessible we can definitely consider adapting a newer version of the bodybytes to use this
3 Likes
Getting consistent 500mA at 5V and the heat (on the chip) is manageable. Maybe 680mA at 3.3V, but the heat gets a bit out of hand. I need to make one more pass to fix a resistor, then Iāll be making them available for people to play with.
Hereās a module Miana made for it already
4 Likes
Wouldnāt heat dissipate faster through the body (which is essentially like water-cooling) than in open air? So the in-vivo temperature threshold might be higher than expected. Iām not sure what kind of temperature internal cells can sustain for short periods like thatā¦
1 Like
Thatās the plan. The entire heat dissipation right now is convection with the air. In the body it would be entirely conduction so probably better. Basically water cooled. You can see I added as much of a ground plane as I could afford on the bottom.
This unit will also likely be available for hobbyist projects outside the body though, since I can crank them out on my pick and place machine. In that case the max draw would be more relevant for the lifespan of the device.
3 Likes