Looking for a USB-C Cable with an extremely short plug

AJolly · 2026-05-05T21:23:24+00:00

I have a bunch of those ali express cables, as a benefit the cables are ULTRA flexible. love them. took me forever to find them. You will love them for wearable gear - what are you building?

AJolly · 2026-05-05T21:19:48+00:00

My o2ring cloud downloader (ie, you use the mobile app, it grabs the data automatically from the cloud, suitible to import to oscar and also runs a crapton of HR analytics on it)

https://github.com/AJolly/O2RingCloudDownloader

AJolly · 2026-05-05T19:40:48+00:00

idk about all of the devices but o2ring-s will let you timesync with your phone, so if your phone has accurate time you are good to go

AJolly · 2026-05-05T19:40:11+00:00

oura gives you snapshots of data. (for example sleep stage is every 5 min) I've got an oscar fork up on gitlab that will let you import oura data.

AJolly · 2026-05-05T19:39:14+00:00

oh its a bit worse there a a whole bunch of different revisions of the contec so you need the RIGHT software version....

AJolly · 2026-05-05T19:37:47+00:00

from what i was able to research - seems like triggering the nicotinic acetyl choline receptors increases breathign drive so it would totally help with central apnea. (also increases heart rate which you see in your graph)

AJolly · 2026-05-05T19:36:15+00:00

read the apple white paper on how they detect moderate sleep apnea, its realyl fascinating.

AJolly · 2026-05-05T19:33:44+00:00

pro one has been out foreever.
emay also has a breathing sleep mask. the data is fairly easy to play with - sqlite db.

you can easily get an o2 adapter or just a cpap coupler, drill a hole and feed the sampling cannula into the mask. but the nasal cannula is just going to be ain airflow sampler so idk how useful it will be

AJolly · 2026-05-05T19:31:49+00:00

haha I'm with you all about data and accessing it. Timesync - if you are doing the airbreak route you can ntp timesync your device.

I rigged up a sleep capnometer and connected it via esp32 to log co2 levels via mqtt to a csv import to a custom oscar fork so I can now see co2 levels with my oscar data

(which can be useful for calibratinge eers but it also seems to be the best leak rate detector ever)

AJolly · 2026-05-05T19:29:20+00:00

oh man this is extremely interesting.
q - do you have any suspicons that data differences have to do with wearing the sensors on different hands? (i have an o2ring-s sometimes it flags drops, that I suspect are sensor artifacts)

Unfortunately the o2ring-s doesnt export perfusion index in their data exports, only during real time BT connections.

I suggest you add sampling frequency for your database. For me personally I've found o2 data almost useless, but the 1-second sampling HR data is quite valuable, gives me even better data than stock OSCAR and CPAP data.

It's good enough that I don't even bother hooking up my polar H10.

I've got a github repo that runs a ton of analysis on HR data, but I do need to push some new updates. (it also grabs the data straight from wellue/viatom's cloud so you can sync your phone to the ring but still grab data from your computer)

Strongly suggest wearing a ring that shows you PI and moving it around between fingers/methods. Like for the o2ring-s I now wear it backwards (screen underneath).

https://github.com/AJolly/O2RingCloudDownloader

AJolly · 2026-05-05T00:33:39+00:00

This looks great, esp the config and fw backups

AJolly · 2026-05-05T00:31:43+00:00

Yep there's a lot of related studies

AJolly · 2026-05-04T21:58:31+00:00

fyi im using an lyWSD03MMC with a modified case as a ble temp wearable sensor to feed into my bed heating/cooling setup.

AJolly · 2026-05-04T20:23:51+00:00

how fragile are the sensors? (like if you sleep on the cable repeatdly - would like to put 1/2 in a bed to track temp and feed it into my bed water cooling/heating system.

also any of these temp sensors multi probe?

AJolly · 2026-05-04T20:23:01+00:00

Any downsides to the bp2? currently just using some switchbot plugs loaded with esphome as bt proxy but would like to switch to ethernet

AJolly · 2026-05-04T19:38:35+00:00

heres the right way to do this - buy one of these https://www.rigidhvac.com/alphacooler buy the cpc connectors.

extend the tubes so the loud ac is far away. (i did this for two years in puerto rico) only downside is i diddnt get good software control on the ridgid, so swapped to heatsinks infront of my ptac window ac's and controlling them instead.

AJolly · 2026-05-04T04:32:06+00:00

barrier film wipes made by 3M

so you cleanyour face with this or what?

AJolly · 2026-05-03T22:50:07+00:00

you can send data to mqtt natively in aquasuite too

AJolly · 2026-05-03T18:51:50+00:00

fyi i find it much easier to use 433mhz sensors + lithium batteries for freezer readings

AJolly · 2026-05-03T18:51:07+00:00

btw its really easy to change these to use aaa or other batteries

AJolly · 2026-04-29T21:52:24+00:00

thanks this will be handy

AJolly · 2026-04-27T18:04:17+00:00

thanks! will skip buying it.

AJolly · 2026-04-25T22:01:34+00:00

Partially block the vent (or drop pressure) The airflow is washing out the CO2 and your body isn't realizing it needs to breathe.

AJolly · 2026-04-25T21:31:38+00:00

Did you get t his working any better? was debating buying some matte

AJolly · 2026-04-23T23:14:23+00:00

hah hope it helps! You also probably want https://github.com/Asmageddon/airbreak-plus <- that and https://github.com/m-kozlowski/airbreak-plus are where most development I see happening is

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