this post was submitted on 06 Aug 2024
73 points (81.2% liked)

Technology

58142 readers
4320 users here now

This is a most excellent place for technology news and articles.

Our Rules

  1. Follow the lemmy.world rules.
  2. Only tech related content.
  3. Be excellent to each another!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, to ask if your bot can be added please contact us.
  9. Check for duplicates before posting, duplicates may be removed

Approved Bots

founded 1 year ago
MODERATORS
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
73
Meshtastic DIY - How To Build Your Own Meshtastic Node ESP32 & Lora Radio (adrelien.com)
submitted 1 month ago by [email protected] to c/[email protected]
33 comments fedilink hide all child comments
 

cross-posted from: https://lemmy.radio/post/3984948

Make your own Meshtastic LoRa Node with our easy DIY guide. A complete step-by-step for building your customized mesh communication system

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 8 points 1 month ago (2 children)

I don't think I understand its purpose. It's a shared wireless communication network for text messages only? So, like, sms-only that is completely independent of the main grid?

[–] [email protected] 7 points 1 month ago (1 children)

Pretty much, yes. It does have some tiny file share capability IIRC (don’t trust me on this) but it’s pretty much just an off grid text based communication platform you connect to with your phone and Bluetooth. Can be extremely long range depending on terrain (line of sight is important)

[–] [email protected] 5 points 1 month ago (1 children)

Can it be used to set up a grid with other people? Kind of like creating put own off-grid grid?

[–] [email protected] 4 points 1 month ago (1 children)

Isn't that the definition of off-grid?

The routing is simple. Every node repeats everything it hears. A message goes out with a counter - defaults at 3, maximum 7. Every time it's repeated the counter is decremented. At 0 it won't be repeated any more.

You can DM nodes you've seen. You can create your own encrypted channels with a pre-shared key. You can link meshes over the internet through MQTT if you have an internet connected node on each mesh.

[–] [email protected] 2 points 1 month ago

Isn’t that the definition of off-grid?

Yeah, but not only. For example, I can build a private wifi network, and have my friends join their phones to it. Some bloke across the yard can open his own network, but the two networks will not communicate with each other. The two networks are off-grid, but are independent of each other.

This meshtastic thing sounds awesome! Crowd sourced off-grid network.