The Gibson 🅅
boosted
The #defcon #meshtastic setup is coming alive. This is fun!
The #defcon #meshtastic setup is coming alive. This is fun!
phildini
boosted
Printed up some cases for my little army of Heltec V3 #MeshCore and #Meshtastic nodes.
The #meshtastic map in Vegas for #bsideslv / #defcon is wild
Printed up some cases for my little army of Heltec V3 #MeshCore and #Meshtastic nodes.
Lent my second #meshtastic node down the street to a friend, and determined the outside antenna I put up only works for receive, NOT send. 🤔 Switched back to the tiny factory antenna and it is working better.
@ai6yr seems #meshtastic is best suited to an area with high density of nodes and no trees, hills, or other obstacles. Like maybe for a group camping trip in the center of a flat, wide open meadow
No, I did not get that from the wiki, it’s just my interpretation 😜
Interesting, figured out every one of my links to #meshtastic is through one single node within line of sight (even with a good outside antenna... 900Mhz does not go through hills/trees). So, when that node is down, I don't get messages in or out. And whoever has that node has a crappy antenna, so although I can hear stuff, I very rarely can send stuff out that is heard. Radio waves.... 🤔
Adam Greenfield
boosted
In about a week I'll be talking about #Meshtastic (a popular decentralised off-grid mesh-networking protocol) in the context of communications fallback during and after disasters. If you are in the quake-prone Pōneke/Wellington or Hutt Valley region, this is especially for you!
https://criticalsignals.nz/programme/introduction-to-meshtastic/
Meshtastic @ DEF CON 33: Event Firmware Now Live
Meshtastic collaborated with DEF CON, Darknet-NG, the Lonely Hackers Club, and other prominent groups heavily involved in the event to ensure this year's firmware is even more successful than last year's. 🛰️
⚙️ Key Features:
• DEF CON 33 splash screen
• Optimized event mode for dense mesh environments with tuned telemetry & GPS intervals
• LoRa Modem_Preset: SHORT_TURBO (capped at 3 hops)
🧵 1/2
Today, in #meshtastic
mkb
boosted
In the event of a major disaster, how does it work when people with private #meshtastic networks need to discover each other?
In the event of a major disaster, how does it work when people with private #meshtastic networks need to discover each other?
@JulianOliver nice one! I recently listened to this podcast episode which helped me understand #meshtastic a lot better.
https://live-like-the-world-is-dying.pinecast.co/episode/15f16c70/mesh-radios-with-chiya
Possibly maybe there are any ideas in the presentation to reuse.
In about a week I'll be talking about #Meshtastic (a popular decentralised off-grid mesh-networking protocol) in the context of communications fallback during and after disasters. If you are in the quake-prone Pōneke/Wellington or Hutt Valley region, this is especially for you!
https://criticalsignals.nz/programme/introduction-to-meshtastic/
MeshCore is a lightweight alternative to Meshtastic LoRa-based off-grid messaging - CNX Software
｢ While Meshtastic is by far the most popular off-grid messaging solution relying on LoRa radios, MeshCore offers an alternative as a lightweight C++ library and firmware designed for multi-hop packet routing and made for developers who want to create resilient, decentralized communication networks that work without the internet ｣
This is not toxicity, I'm doing cybersecurity research and sadly I'm seeing a ton of vulns still.
#meshtastic have claimed to be secure for years but only actually introduced public key crypto last year. Before this, DMs simply were not even private.
After this they made MASSIVE security errors in how they derive private keys(without any regard for crypto secure entropy) and also a lack of design for manufacturing.
really interesting to read @nullagent thread on LORA/ #meshtastic vs his preferred #meshcore. I'm also kinda surprised meshtastic uses the MAC as the identity, and if meshcore uses an encryption key that is really a huge improvement (decouples identity from radio). anyway I'll check out what's up on meshcore down here in LA.
It continues to be the case that my #meshtastic nodes in Altadena can hear things from far away, but can't send anything into the greater LA mesh. my guess is some kind of repeater node in a high spot would help. I wonder if St Elizabeth on Lake would put a small solar node in their bell tower to promote community resilience in emergencies.
I've been playing around with Meshtastic. I live in a very hilly area, so it's very challenging to get any type of range. The antennas need to be very high up on a hill and powerful.
I've taken a radio with me "into town" and I immediately get many nodes. But that does me no good out in the boonies.
Also - it feels like Discord without moderation options. I can't block anyone. Icky.