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Comment by 🐙 norayr

Re: "Gemini over LoRaWAN?"

In: s/permacomputing

Cotteux, very interesting!

what limitation do you mean: speed? size? why do you need to split the page to 200 byte pieces?

🐙 norayr

May 07 · 6 weeks ago

13 Later Comments ↓

☯️ Cotteux · May 07 at 12:56:

The meshtastic protocol is limited to 230 characters to send and receive a message. I also made some test at longfast and it's working good. A small page take around 30 to 120 secondes without optimisation.

🌲 Half_Elf_Monk [OP] · May 17 at 17:26:

@Cotteux - that is SO COOL. Do you have the code uploaded anywhere (github, etc)? 3.5kbps isn't much, but again as a proof of concept that's excellent. A 200 character message size sounds (to me) like a pretty large "packet" of information. How resistant are each of these messages/packets to data loss along the way? Any updates since you've last tried? I'd love to see a video or something of how it worked.

@norayr - Thank you for the generous remembering of what LoRa/meshtastic does. fwiw, I was wondering whether such a physical layer could be built/written on top of those radios. The OSI lists seven "layers," on which the internet is built. I'm wondering if a mesh of LoRa radios can be made to replace the bottom two (maybe three) layers. If each of the devices can mesh by: 'serving' data to reqestors, 'locating' (data-request-wise) specific devices, or 'relaying' requests/responses to devices they can't find, then couldn't that become something like IP addresses?

From there, existing code could be plugged in to make layesr 4-7 work. Because LoRa is inherently slower (I was assuming 56.6k equivalent, though it looks like that's optimistic), the web that would run on that hardware/mesh/layers would have to be slower. That's not a bad thing. You'd connect to the capsules that were physically closer to you a lot faster than the stuff far away.

— gemi.dev/cgi-bin/wp.cgi/view?OSI%20model

@olav - reticulum.network looks really interesting, thank you! From what I can tell, it's a chat/comms application for the sort of mesh networks I was thinking of. Perhaps their model is a bit more realistic in that it doesn't rely on only one kind of radio. I was hoping to host/serve smol capsules over that same kind of mesh.

@fab - wow that's unfortunate. 1% really won't work for this application. :/

@requiem - This is good to know. I'd not heard of ESP's, and I didn't realize antennae were so cheap. Out of curiousity, what kind of speeds are you getting on average with your LoRa devices?

🐉 gyaradong [mod] · May 19 at 11:49:

I feel like "Gemini" (by Gemini I really mean the set of smolweb protocols which are aligned to Gemini) needs a sort of "reverse mail" mode, where servers co-operate to fetch data which might be available intermittently. Once that's the case, I think LoRa works well for that use case. Maybe something Gossip-related?

🚀 Geer3The · May 19 at 14:33:

functionality through an occasional connection is a good goal. The only experience that I had with gossip was Scuttlebutt. Correct me if Scuttlebutt does not use Gossip. Scuttlebutt seemed very 'heavy'.

☯️ Cotteux · May 19 at 22:10:

The code is not upload for the moment, the code is terrible and i need more testing. The protocol real speed in Longfast is 300 bps and MediumFast almost 1200 bps.

For the stability my protocol send the number of lines to received and I numbered all lines. If some lines is missed, the client ask these lines back to the server. Also the protocol can received Chat and Text page at the same time.

☯️ Cotteux · May 19 at 22:46:

I send a link to a video showing a reception of the Gemini capsule spartan.mozz.us at LongFast .

— https://odysee.com/@cotteux:7/2024-05-14-19-00-55:2b

👺 daruma · Jun 07 at 06:41:

I really think it's the way forward. Gemini, or gopher, or some sort of BBS really. I would think something that can be synced, so that you can keep in touch with other. This BBS is a good example of a system that would work well with LoRa radio, but should also be reachable through other protocol. I've made myself a small e-paper 'typewriter' that also has a LoRa radio. The tablet is android, and can connect to meshtastic. But living in the middle of nowhere, I can't test that setup just yet. I'll send pic / write about it, somewhere in gemini :D

💀 requiem · Jun 07 at 10:24:

@daruma please write a loooong post about it! I would love to read about it, I am thinking of creating similar things!

☯️ Cotteux · Jun 07 at 16:53:

My project still in progress. I modify my client to be a proxy server to link Lagrange with meshtastic.

After that, is easy to create a adapted capsule for meshtastic. it's easy to create page loading ender 10 sec on longfast.

this a video of loading in longfast a gemini capsule.

— https://odysee.com/@cotteux:7/meshgate1:b

👺 daruma · Jun 07 at 17:57:

@requiem here are some information

— bbs.geminispace.org/u/daruma/17758

🐙 norayr · Jun 07 at 21:01:

i wonder how to do that without meshtastic. i understand that lora is very different, and running tcp/ip over it is not that easy. but still, i wonder are there options if not meshtastic, what else can we do. i guess if i understood lora better, i would know.

☯️ Cotteux · Jun 09 at 14:52:

It's also exit Reticulum network with an ip system.

This network work with lora, ham radio, wifi ....

They already have a message system and a text web system with Micron (mix markdown + html) with compression system.

Nice project

☯️ Cotteux · Jun 09 at 14:53:

— https://reticulum.network/

Original Post

🌒 s/permacomputing

Gemini over LoRaWAN? — I'm fascinated by the idea of running a smolweb over LoRaWAN. Imagine a decentralized network of FLOSS-hardware devices, solar-powered, each running a gemini capsule and a relay (HAM radio style) to transmit data on to other points on the LoRaWAN mesh network. It's not a fast way to communicate, but smolweb gemini doesn't need to be. If LoRaWAN can reach 56.6kbps, it'd feel like the days of dialup, but... decentralized, solar-powered, and resistant to censorship. Has...

💬 Half_Elf_Monk · 32 comments · 5 likes · May 01 · 7 weeks ago