[Complete] e-amusement arcade implant

[biovoid]

Hi, those of you who recognize me from Discord have probably seen this already, but thought I’d share here too.

I play a lot of arcade rhythm games, mainly Dance Dance Revolution (doubles for life). A Konami product, login is facilitated through their e-amusement service, which uses an NFC-enabled card. When I first entered the bodyhacking scene, I was immediately enamored by the idea of getting one of mine implanted.

These are migrating to FeliCa/NFC-F (right), but older ISO15/NFC-V cards (left) are still supported. NFC-F being arcane magick, I sought an implantable NFC-V solution.

The DT xSLX is the right spec, but Konami’s servers have a UID whitelist—while an xSLX would work on third-party networks, it wouldn’t be guaranteed for official network login. Thus, I needed to find a magic chip…

I made several purchases of pieces to test; Amal was very helpful in describing the issues with each candidate piece I inquired about. Eventually I found this listing (the CoB variant).

CoB has its issues, but proved workable. Amal was able to adapt the chip onto an antenna, and after I confirmed the samples had sufficient performance for my use case, I was able to get one implantable…

Though the spare didn’t survive…

…two were made, and the other did! One install later… it works!

Of course I got it marked like the rest of my implants (slightly abstract arrows).

I can rewrite it between my two accounts (bar, no-bar ) for e-amusement, but I can also write an AM.Pass to it for Andamiro games too (Pump It Up, mostly).

Big thanks to Amal for all the feedback and work on a less-than-optimal piece of hardware, Cory for helping with the antenna, and the DT team as a whole for all their help in making this a reality (and my local friend Cal for donating cards to sacrifice for R&D and testing o7). It’s been a year in the making and I’m so excited to have this (one-of-a-kind?) implant.

[XEMON]

soo is that a magic SLIX ISO15693?
Seriously cool

Whats your scan range? any interaction with ISO14443 implants?
Can you change the card type too or just the UID?

[biovoid]

It is magic ISO15693 yeah! The tuning isn’t perfect; despite being a flex performance is comparable—or slightly better—than an x-series.

Not sure what sort of ISO14 interactions you mean.

I can get it to read as an ST SRi instead of an NXP ICODE (by changing the first few bytes). I haven’t tried making it read like any other spec than NFC-V, if that’s what you mean.

[Pilgrimsmaster]

@biovoid

thought I’d share here too

Thank you, and what a great project.

Happy to be your 10th so you get a badge

[XEMON]

@biovoid

Not sure what sort of ISO14 interactions you mean.

I don’t have much experience with ISO15693 but they tend to have much longer range, the cards ive used were able to be read several inches away (10-12) compare to the few (2-3) for a full card ISO14443. So i was wondering if readers would prioritize teh ISO15693 due to the better rance and then you have issue reading ISO14443?

@biovoid

I can get it to read as an ST SRi instead of an NXP ICODE (by changing the first few bytes). I haven’t tried making it read like any other spec than NFC-V, if that’s what you mean.

Thats awesome, i didnt know there were magic/grey market ISO15693 capable of that, i will pick a few up to test

[amal]

Iso15693 is called a “vicinity” protocol while iso14443 is a “proximity” protocol. Basically 15693 is meant for lower power, lower bandwidth, longer range operations vs 14443.

@XEMON

if readers would prioritize teh ISO15693 due to the better rance and then you have issue reading ISO14443?

Depends entirely on the reader but it’s irrelevant because a reader capable of reading both types will be checking for both in quick succession. The thing that gets read first will be the thing able to be read first… so if all things are equal (same antenna for both, same approach position and angle with no preference for one vs the other… in this case the longer range operation will result in the 15693 chip being read first every time.

[XEMON]

Ho, so an ISO14443 reader is not gonna show an error when approaching you hand with both ISO implant? Would there be crashes with both being the same frequency?

Could be a good addon for teh front-arm, being easier to read

[amal]

Well I won’t be so foolish as to tell you exactly what a reader will do or even what it should do… but the protocols are different and the communications are different… but both ISO standards are basically reader talk first protocols, meaning the tags are not going to respond unless they are asked for information. The way they are asked is different per ISO standard so in theory to different protocol tags of the same frequency should not talk over each other or interfere with each other, and the reader should be free to interrogate one ISO protocol and then the other without much issue.

[XEMON]

this is awesome!
thanks for the demo.

And sorry @biovoid for high jacking your thread

[biovoid]

Hey I learned something too! Thanks Amal~

[Satur9]

So glad it worked out

[Pilgrimsmaster]

I guess the biggest question unasked…

Did you implant this?

[biovoid]

Heh nah… I might put it on a keychain or something. It still functions. Though I’ll probably destroy it pretty quickly that way. Maybe I’ll frame it on a wall.

[XEMON]

What about pouring it in resin?
Clear resin will let you see it and it will stay protected.

[biovoid]

Oh that’s a good idea. I just bought some for a different project actually.

[Pilgrimsmaster]

@biovoid

Oh that’s a good idea. I just bought some for a different project actually.

I’m not sure of your experience with resin:-

Heaps of experience!?
Go forth and conquer
I’m looking forward to seeing your end product

Little to no experience!?
Just be careful of the heat, when the resin and curing agent/ hardener mix it produces heat, some resins more than others, It may fuck your SexyFlexie

Little extra
If you want fewer bubbles, you can warm the resin (~5mins) with warm / hot water before you mix the hardener

[biovoid]

I’m more “little to no”. Thanks for the tips! This will be especially helpful for my other project

[XEMON]

watch out with entrapped bubbles, if you have access to a vacuum chamber its best, but otherwise, be careful when mixing and poring

[amal]

You can also mix and put the mix into an ultrasound bath to degass before pouring. Easier to access and less risk of getting resin fumes in your vacuum pump … normally you’d need a dry ice condensation chamber in line between your chamber and pump and it all becomes a damn pain in the ass… but a jewelry cleaner is a cheap and easy ultrasonic degasser

[XEMON]

Didn’t know that trick, I’ll try it next time
Thanks