healing time

everything seems to be more or less healed up now - only a little redness and dead skin left around the incision sites for the nodes, and of course the xNT site is just a little pink scar dot now, bruising's completely dissipated. here's how the node & chip sites are looking:

i'm still having a little bit of trouble typing because the node on the outermost finger is still giving a tiny amount of pain when i use it to strike a key but i can't really avoid that & i don't think it's doing any damage so it's pretty much good as far as i'm concerned. the other one is further along the path, with less redness & no pain, and its scar has already gone white. as before there were no concerns with infection & i'd happily recommend the piercer who did them, Jenova, if she hadn't sadly moved to Spain just recently. she should be practicing again at a later point from what i heard so if you're gonna be in Andalucia or can get there once she's all set up, go for it. seems like there's better chances of getting stuff done on the Continent than there is here in the UK, what with Trust & other places, but the scene seems to be expanding slowly. you've got a better chance of getting stuff done by piercers now than you did ten years ago by far.

i'd also really like to thank a particular person for a generous donation on the 22nd of May - thanks to this i will be able to start messing around with chips for the compass doohickey, once i poll a friend of mine on potential microprocessors. if anyone knows a microprocessor which is small and could potentially take input from a compass module or even better, has the capability onboard, that would be fukken sweet - otherwise, i'll grope around in the dark and eventually come up with one myself. it'd also be great if i could just plug the eight or sixteen different electrodes for output right on into the processor but i don't think that's actually going to be that easy. i'll figure something out.

documentary is on track - it will feature not only me, but also some other UK transhumanists - Paul is currently working on some interviews, and i know he's filmed others already - Jenova and various other individual biohackers, plus Vicarious is also collaborating with him. he's also working on getting H+ people from further afield to send in video interviews so there will be a bit more interesting content than just my views on stuff and films featuring my screechy little "this hurts" voice. you will have to put up with a fair bit of those though. the finished film will be available on Youtube and here in late September.




Anonymous said...

have you considered getting an account on patreon.com?
might be helpful

ThomasEgi said...

About microcontrollers there's a big selection of devices. Pretty much all of them have IIC/TWI interfaces which are used in modern magnetometer chips.
Two of the more famous series I'd recommend are the MSP430 series from TI and pretty much the entire attiny/atmega range from Atmel (now Microchip).

The MSP430 doesn't come with the same nice open-source easy to use toolchain the attiny/atmega can be used with. However the MSP430 demands a bit less power. My personal recommendation due to simplicity and ease of use would be an attiny861. One of the reasons being I already have working C-code for atmel chips to interface at least two different magnetometers. It also comes with a number of analog input pins which come with an input-buffer that can be disabled and allows you to build a cheap and fast DAC for driving electrodes.

As for energy storage I'd either recommend some very pricy medical/space grade lithium based ones. Or , if you'r on a budget, go with rugged NiMH such as the 1/V40H coin cell from varta. They are small, available, rather cheap, easy to handle (if you don't care about fast-charging) and they will take quite some abuse before causing serious trouble (unlike cheap lithium cells which are basically explosives waiting to go off).

You may also need a small boost converter to bump your voltages up from the low NiMH cell voltage but that's no big deal. MCP16251/2 will do just fine and you can adjust your desired output voltage on the fly (like upping it in case you need some extra headroom for electrode drivers)

Since you are probably going with output electrodes at some point you may need some analog circuitry, namely op-amps. MCP6421/2/4 should serve you well in terms of low-power demand, frequency response and operating voltage.

Delivering power for charging the battery is best done via resonant inductive coupling but that's pretty much obvious. I'd go with off the shelf smd inductors and build the thing from a few discrete components instead of using sophisticated IC's for things like Qi.

There are a couple of more interesting and potentially useful parts out there, depending on your needs. I also have an experimental electrode-driving circuit which works pretty fine at least on my workbench. Stimulation parameters can be adjusted in software in case it's required.

Dan Campbell said...

I don't understand about 70 percent of this, but that's some detail. Almost certainly, Lepth will be able to make use of this.

Dan Campbell said...

Lepht, you asked for questions or suggestions in one your recent blog posts.

Aside from addressing the possibility of using implants to enhance one's short term memory, I wouldn't mind hearing speculation on your part or Paul's part. Most of us, who are too queasy to try an implant right now, might have our own ideas about the future, and about what's possible.

But you and Paul are involved in this more concretely. I'd rather here 'armchair philosophers' who are actually involved, than individuals like myself.

Counting the months till the documentary is finished, can't wait.

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