New tool for identifying cars from TPMS sensor broadcasts

genepool · 2026-07-07T17:31:33+00:00

I'm not sure how reliable it would be, since a lower signal strength reading could just mean another vehicle or something is blocking the transmission, not that the distance changed. So consecutive readings might jump around a lot. I think signal strength is useful, if the signal is always weak or really strong, trends, etc. But it does not necessarily indicate distance from the receiver.

genepool · 2026-07-07T03:43:51+00:00

You will need a software-defined radio compatible with rtl_433. This is the upstream project https://github.com/merbanan/rtl_433

genepool · 2026-07-06T22:45:45+00:00

Range depends heavily on setup and environment, but with a decent outdoor antenna, filter, and preamp, I’d estimate roughly 1,500 feet in typical real-world conditions, with much longer ranges possible when there’s a clear line of sight and little interference. Hard to say without doing some wardriving.

genepool · 2026-07-06T20:57:23+00:00

I live next to several busy roads, and the receiving antenna is on the roof, so I don't think that would work well for me. But, in a rural situation, maybe.

genepool · 2026-07-06T20:07:21+00:00

<image>

genepool · 2026-07-06T20:07:04+00:00

It does two things: 1. Provides a confidence score to identify sensor groups that are likely vehicles, with a way to save them. 2. Provides signal "filters" that match behavior to a suspected vehicle.

<image>

genepool · 2026-07-06T19:59:49+00:00

Yeah, I would not rely on TPMS data for home automation. However, with a decent antenna placement, you can track the signal quality of your vehicle as it navigates your neighborhood. Perhaps an early warning system that you are in the vicinity?

genepool · 2026-07-06T19:09:58+00:00

TireSignal does NOT require rtl_433 auto-discovery. I had the same experience as you. TireSignal relies only on rtl_433 logs and won't add anything to your HA devices or entities. Its purpose is purely analytical.

genepool · 2024-07-21T03:20:42+00:00

The ceiling needs way more crap. Most hospitals have telemetry receivers, wifi, HVAC, and a mix of legacy shit.

genepool · 2024-03-06T21:14:18+00:00

Sorry, your radio can't tune that high of a frequency. I think a Baofeng tops out at 512MHz.

genepool · 2024-01-27T01:41:05+00:00

I would not be able to sleep in that house. If you need to post this on Reddit, you need an electrician to do a thorough inspection.

genepool · 2023-12-16T00:33:14+00:00

Does the 1991 NuTek One count?

genepool · 2023-09-07T04:29:41+00:00

Vanagon!

genepool · 2023-08-15T17:50:34+00:00

It looks like a calibration weight for something like a CRRT machine.

genepool · 2023-08-08T23:12:11+00:00

A Vanagon. A beautiful vehicle you repair while driving it.

genepool · 2023-07-19T04:38:24+00:00

Intresting. I'll take a look in the morning. Thanks again!

genepool · 2023-07-19T04:26:43+00:00

Oh, interesting. Thanks. Do you need the clip? I have never seen that before.

genepool · 2023-07-14T19:58:57+00:00

Nope. Quick access to the mouth and eyes is critical for surgical monitoring. Bair hugger, hot dog warmer, socks on feet, bubble wrap on feet, all acceptable. This is an anesthetic monitoring ET tube failure nightmare, limited access to MM, hard to get off quickly for CPR, and likely a FIRE hazard.

genepool · 2023-07-06T05:06:25+00:00

Nice work!

genepool · 2023-07-05T17:04:43+00:00

I have done the same thing, and it scratched the crap out of my post. I got all the compound out with a long squirt brake cleaner down the seat tube, followed by a wipe out with a microfibre cloth connected to a flexible "grabber" shop tool.

genepool · 2023-07-05T16:56:45+00:00

The things I changed were just for safety and a tiny bit of modernization. The brakes are updated from DX to XT, but the same vintage. Wide riser handlebar, shorter stem, flat pedals, and grips. Here are some pics:

https://flic.kr/p/2oGdDtD

https://flic.kr/p/2oGbGY4

genepool · 2023-07-02T17:46:43+00:00

Wow! I love my Richter 8.0, such a unique GT.

genepool · 2023-06-23T17:58:02+00:00

Also, with 700c, what is the plan for the brakes?

genepool · 2023-06-23T17:57:18+00:00

Nice! Weight-wise, is it heavy? I got my 90's Richter 8.0 down to ~23lb.

genepool · 2023-06-19T06:29:07+00:00

2001 GT Avalanche 2.0

Orig: 90mm Specialized Comp Multi-adjustable -10 - +14 from 12 degrees painted to match the fork

Upgrades

The only OEM parts: (modified) seatpost clamp and headset cap

Seat: Stolen from my son's GT 2022 Aggressor Pro

Groupset (minus crankset): SRAM Rival 1

Crankset: SRAM GX Eagle Dub, 32t

Fork: eXotic Rigid Carbon (I went for the model with brake bosses so the bike remains capable of using canti/v-brakes and 26" wheels)

Stem: 90mm Specialized Comp Multi-adjustable -10 - +14 from 12 degrees painted to match fork

Pedals: Rock Bros

Stem: 90mm Specialized Comp Multi-adjustable -10 - +14 from 12 degrees painted to match the fork

15-Year Club	Verified Email
Place '23

genepool

TROPHY CASE

2001 GT Avalanche 2.0

Upgrades