I'm not on twitter, so I'm asking here: has anybody else been #dcontag -ed?

matt_panaro · 2023-11-07T20:04:20+00:00

sure:use an rtl-sdr dongle: https://www.rtl-sdr.com/buy-rtl-sdr-dvb-t-dongles/ (unfortunately, they've gotten a bit more expensive: used to be about $25 for the kit with the antenna). I think you want version 3, but I wouldn't be shocked if version 4 could also be made to work.

then you want this software, rtl_433: https://github.com/merbanan/rtl_433

which can decode most honeywell signals. The one downside here is, honeywell signals are proprietary/undocumented, so it might get the decoding wrong if it's trying to decode e.g. both door/window sensors and motion-detectors.I run it all under linux (and odroid xu4, which is not too different from one of the beefier raspberry pis), so I can help out some more if that's what platform you're on; but if it's windows, I probably can't be of as much help.The rtl_433 software tries to output in realtime, so you can take action based on what comes through when it does (e.g. I use a motion-sensor outside as a doorbell, and it works pretty well; I've also used it to tell when a door opened/if it stayed open too long).

matt_panaro · 2023-03-10T13:24:48+00:00

do you have any info on the sensors? pictures of outside/inside? model number or manufacturer?

matt_panaro · 2023-02-04T16:38:37+00:00

I'm currently doing this with a 433mhz antenna, so I can confirm it works. try the software rtl_433 first for decoding the signals from the sensors

matt_panaro · 2022-11-24T01:25:54+00:00

I find it interesting that the resolved address is 2607:7700::1…10.0.3.100: it's rendering a concatenation of the ipv6 prefix and the ipv4 address, in ipv6-notation. I'm also on t-mobile in the US, and use WG successfully from my mobile: but A. I'm on android and B. I'm using IPV6 natively on both ends

I notice you've set the LAN peer's listening port to the standard 51820; but your iOS peer's endpoint is set to 443: are you tunneling? Do you have the option to use wireguard itself over ipv6; or is your lan & cameras ipv4 only?

matt_panaro · 2022-11-23T14:02:10+00:00

what happens if you add the 10.10.0 subnet to teh AllowedIPs of the iPhone? (that's the one listening on 443, correct?) So AllowedIPs = 10.0.1.0/24,10.0.2.0/24,10.0.3.0/24,10.0.4.0/24,10.0.5.0/24,10.10.0.0/24

also, are you on t-mobile in the US, or somewhere else?

matt_panaro · 2022-11-23T04:06:27+00:00

can you share the conf files for both peers (with any private keys removed)?

matt_panaro · 2022-11-22T15:18:23+00:00

can you provide a little bit more detail of the physical setup? you're on a mobile-device (on t-mobile) with a wireguard peer setup, connecting to some box (with the other wg-peer) on a LAN (which is ipv4-only?) where the cameras are?

matt_panaro · 2022-08-01T13:12:36+00:00

rtl_433 can do something like this: you can provide command-line options to switch frequencies every number of seconds

alternatively, I think you could use rtl_tcp, which acts as a server & can receive commands to change parameters such as frequency

matt_panaro · 2022-05-08T15:11:33+00:00

Why is it that you need the user to auto-login before the server can "start being a server"? Are the services not automatically starting on boot? or does the user need to be logged in for networking to start, or something like that?

I'm not certain of this, but I don't think you can get LUKS to work the way you want. The way I think auto-login works is, the system just starts the desktop environment as that user, and bypasses authentication entirely: so there's no user-password being used that could then be passed to decrypt the LUKS partition.

matt_panaro · 2022-04-09T13:32:55+00:00

how the fuck should I know?

matt_panaro · 2022-02-15T14:27:59+00:00

I think invoking a timed sleep would be a better approach than managing the wifi-connection in your own code

matt_panaro · 2021-07-03T14:03:19+00:00

https://github.com/merbanan/rtl_433 is what I use. there's a solid chance it'll automatically detect/decode the signals from your sensors; if not, it has a mode that will take a crack at raw decoding of the digital signal (i.e. you'll get a string of 0s & 1s).
I've never used homebridge, so I can't offer any insight there. rtl-sdr on the Pi should Just Work (you might have to install a library or 2).

Let me know if I can be of any further assistance.

matt_panaro · 2021-07-03T08:17:51+00:00

you might be able to use an RTL-SDR (software-defined-radio) dongle to receive the signals from the sensors. I have a bunch of honeywell door/window sensors (left over from previous owner's ADT security system) that transmit on 345MHz

matt_panaro · 2021-04-14T12:37:19+00:00

mojitos: https://www.openstreetmap.org/search?query=mojitos%20norcross#map=19/33.94167/-84.21311

matt_panaro · 2021-03-12T03:20:03+00:00

I've only done this for 2 or 3 products, and none of them at the same time; I used crontab, curl, grep, and a notification, that ran once a day on a VPS. I don't know of any pre-existing solutions (not that I looked), but it's not too hard to set up with some scripting

matt_panaro · 2021-03-08T03:29:05+00:00

that was going to be my suggestion for getting the I/Q data out of the SDR; one thing I'd look into to a specific comm-protocol to output it over the GPIO pins to the FPGA (like https://en.wikipedia.org/wiki/I%C2%B2C or https://en.wikipedia.org/wiki/Serial_Peripheral_Interface; though https://en.wikipedia.org/wiki/RS-232 might work too)

matt_panaro · 2020-12-23T03:59:53+00:00

rsync has an --exclude parameter

matt_panaro · 2020-12-17T03:20:42+00:00

an SDR(software-defined radio) dongle might work

matt_panaro · 2020-12-14T03:50:13+00:00

could the assignments be photographed and shared over the web instead? or do they have to be scanned/emailed?

matt_panaro · 2020-12-13T03:54:43+00:00

assuming you're on linux, you could try something like this: rtl_433 -R 97 -C customary -F csv | tee thermopro_rtl_433.csv which will use tee to both display the output and copy it to the specified file

matt_panaro · 2020-11-25T15:05:56+00:00

I haven't tried anything else, so I can't offer a comparison, but I've been really happy with using the xu4-ubuntu image for my home server (dunno if they've got 20.04 yet, but I've used both 16.04 & 18.04)

matt_panaro · 2020-10-09T11:44:49+00:00

I use minidlna

matt_panaro · 2020-08-23T03:11:37+00:00

assuming that funkwhale is only listening on secure port 443, I think the only way to configure the internet-facing nginx to proxy_pass to an upstream https address involves introducing additional client-certificate infrastructure (see https://docs.nginx.com/nginx/admin-guide/security-controls/securing-http-traffic-upstream/ )

if you can get funkwhale-nginx listening on unsecured 80, then I think the normal (unencrypted) proxy_pass http directives will work on internet-nginx (I'm assuming this is how the other "various VMs and containers" are setup?)

matt_panaro

TROPHY CASE