#meshnetworks — Public Fediverse posts

#Decentralization #Decentralized #Web3 #Fediverse #Mastodon #Nostr #ATProtocol #Bluesky #ActivityPub #MeshNetworks #Yggdrasil #CJDNS #Hyperboria #DistributedSystems #OpenSource #SelfHosting #DigitalFreedom #Privacy #Cybersecurity #IPFS #Filecoin #Arweave #DistributedComputing #Bittensor #AkashNetwork #GolemNetwork #P2P #AlternativeInternet #FutureTech #FreeSoftware

#Decentralization #Decentralized #Web3 #Fediverse #Mastodon #Nostr #ATProtocol #Bluesky #ActivityPub #MeshNetworks #Yggdrasil #CJDNS #Hyperboria #DistributedSystems #OpenSource #SelfHosting #DigitalFreedom #Privacy #Cybersecurity #IPFS #Filecoin #Arweave #DistributedComputing #Bittensor #AkashNetwork #GolemNetwork #P2P #AlternativeInternet #FutureTech #FreeSoftware

@toroidalcore Tagging for #SolarPunkSunday! #Meshtashtic and #MeshNetworks is something I want to learn more about.

Excited to try this out: https://github.com/roogle-dev/reticulum-phantom

> Decentralized, end-to-end encrypted P2P file sharing over the Reticulum mesh network. The first torrent-like application built natively on Reticulum.

#RNS #Reticulum #meshnetworks

Update: I was informed this was vibe coded and finally got around to reading more into it. I can't recommend this. Please see this link for more info: https://github.com/roogle-dev/reticulum-phantom/issues/3#issuecomment-4285042507

Réseautage en #mesh

Comment communiquer quand on ne veut pas passer par #Internet ou la #5G ? Les #réseaux maillés ou #meshnetworks https://en.wikipedia.org/wiki/Mesh_networking utilisent les ondes radio pour tisser des chaînes de #communication parallèles. Dans des sociétés de plus en plus surveillées où des gouvernements peuvent couper les télécommunications du jour au lendemain, ces réseaux décentralisés et accessibles ne sont pas qu'un délire de survivalistes https://mastodon.social/@garsthieu/116420882881816408

#surveillance #repression

Réseautage en #mesh

Comment communiquer quand on ne veut pas passer par #Internet ou la #5G ? Les #réseaux maillés ou #meshnetworks https://en.wikipedia.org/wiki/Mesh_networking utilisent les ondes radio pour tisser des chaînes de #communication parallèles. Dans des sociétés de plus en plus surveillées où des gouvernements peuvent couper les télécommunications du jour au lendemain, ces réseaux décentralisés et accessibles ne sont pas qu'un délire de survivalistes https://mastodon.social/@garsthieu/116420882881816408

#surveillance #repression

Réseautage en #mesh

Comment communiquer quand on ne veut pas passer par #Internet ou la #5G ? Les #réseaux maillés ou #meshnetworks https://en.wikipedia.org/wiki/Mesh_networking utilisent les ondes radio pour tisser des chaînes de #communication parallèles. Dans des sociétés de plus en plus surveillées où des gouvernements peuvent couper les télécommunications du jour au lendemain, ces réseaux décentralisés et accessibles ne sont pas qu'un délire de survivalistes https://mastodon.social/@garsthieu/116420882881816408

#surveillance #repression

"What Is: Noncompliance" is an upcoming festival of sound and workshops in #toronto (by The Music Gallery, May 6-9)
I will present new #netart and there are some exciting performative workshops on #meshnetworks #tapeloops and "insubordinate listening".

https://musicgallery.org/programming/2025-2026-season/what-is-noncompliance/

#art #music

📶 Community infrastructure, mutable protocols, mesh networks…

Independent and self-sovereign communication is more compelling than ever.

Watch the recording of our latest meetup with Jacob Sayles, @gwil, and Mathias Jud.

https://archive.org/details/dweb-virtual-meetup-mar-2026-p2p-mesh/GMT20260326-170134_Recording_2560x1440.mp4

#DWeb #Willow #qaul #MeshNetworks #MeshCore #Meshtastic #communityNetworks

How-To Geek: This tiny radio lets me send texts without Wi-Fi or cell service . “Reading about community resilience recently, I came across talk of something called Meshtastic and how it lets you stay in touch with people miles away even if your internet access and the power grid itself were shut off.”

@benroyce the whole #meshnetworks thing feels suspiciously adjacent to other efforts to substitute something safe for something that might enact change: protest tech by buying someone else's tech rather than becoming active in lobbying for change. shop for dodads to build a toy wireless network rather than network with your community and build a support system.

Cutting off #Internet access for #authoritarian control is entrenched in #Russia

People talk about #meshNetworks. But Russians have decided on another approach:

pagers

radios

landline phones

Maybe the #revolution *will* be televised: it can't be streamed

I do enjoy myself some #SwanLake

"sales of pagers... saw a 73% increase compared to the same period in February. Radio sales rose by 27%, and landline phone sales grew by 25%"

https://united24media.com/latest-news/moscow-reverts-to-90s-communication-tools-as-internet-outages-cause-chaos-16800

#Moscow

LPWAN Meshes: ClusterDuck Protocol - Purpose-Built for Emergencies

https://web.brid.gy/r/https://gaggl.com/blogs/2026-03-12-lpwan-meshes-clusterduck-protocol-deep-dive/

#meshnetworks #meshcore #meshtastic #reticulum #meshnetwork

it lives here now; not as sexy as a giant skull but convenient for me

#meshcore #meshnetwork #meshnetworks

Missed last week's @escape_velocity? Well here is the same presentation, complete with my child occasionally doing mischief in the background.

https://spectra.video/w/c51sVv2Ucorm2GGFsDDfxB

#Meshtastic #Meshcore #Reticulum #MeshNetworks #LoRa

Last Saturday’s Mesh Networks Workshop at La Générale. Thx all for this first successful event. Presentation by @joachim Photos by @glvn
Slides in french on Joachim’s blog https://fourbi.eu/billet/2026-02-07-notes-d-exploration-lora-no4
<3 #pnode for the idea and to be such an important community node.
#mesh #meshnetworks #LoRa #meshtastic #meshcore #decentralisation #radio #lagenerale #pnode

I am buying my first LoRa device.

Following the insightful buying guide by LocalMesh Netherlands, I am thinking I will go for LYLYGO T-Echo Plus. I would like to buy it from the official website, where it costs ~54€.

What do you think?

#LoRa #Meshtastic #Meshcore #MeshNet #MeshNetworks #radio #Netherlands #LocalMesh

I am buying my first LoRa device.

Following the insightful buying guide by LocalMesh Netherlands, I am thinking I will go for LYLYGO T-Echo Plus. I would like to buy it from the official website, where it costs ~54€.

What do you think?

#LoRa #Meshtastic #Meshcore #MeshNet #MeshNetworks #radio #Netherlands #LocalMesh

I am buying my first LoRa device.

Following the insightful buying guide by LocalMesh Netherlands, I am thinking I will go for LYLYGO T-Echo Plus. I would like to buy it from the official website, where it costs ~54€.

What do you think?

#LoRa #Meshtastic #Meshcore #MeshNet #MeshNetworks #radio #Netherlands #LocalMesh

I am buying my first LoRa device.

Following the insightful buying guide by LocalMesh Netherlands, I am thinking I will go for LYLYGO T-Echo Plus. I would like to buy it from the official website, where it costs ~54€.

What do you think?

#LoRa #Meshtastic #Meshcore #MeshNet #MeshNetworks #radio #Netherlands #LocalMesh

I am buying my first LoRa device.

Following the insightful buying guide by LocalMesh Netherlands, I am thinking I will go for LYLYGO T-Echo Plus. I would like to buy it from the official website, where it costs ~54€.

What do you think?

#LoRa #Meshtastic #Meshcore #MeshNet #MeshNetworks #radio #Netherlands #LocalMesh

"Element expects that a Dutch government investment in Matrix peer-to-peer technology could now support this quest. The goal is to develop a version of Element that can operate on a mesh network without requiring an internet server."

#ChiaraCastro, 2025

https://www.techradar.com/vpn/vpn-privacy-security/we-need-to-go-beyond-signal-how-todays-aws-outage-shows-the-weaknesses-of-centralized-apps

Ooh, that's exciting! @matrix folks have been working on p2p matrix for a while, but progress has depended on volunteer devs;

https://arewep2pyet.com/

#decentralisation #MeshNetworks #matrix #TechFunding #Netherlands

Today marks the 15th anniversary of the beginning of the Egyptian revolution, in 2011.

Those were the years when Facebook was trying to fool people posing as the good platform empowering oppressed populations.

Look at where we are, now. Platforms showing their real despicable nature.

I truly hope another revolution comes soon, everywhere. This time, we will all be using mesh networks, decentralized protocols, encrypted communication.

Transparency for the powerful, encryption for the masses. (paraphrasing Julian Assange)

#ArabSpring #Egypt #EgyptRevolution #Facebook #Meta #encryption #protest #protests #revolution #meshNetworks #Assange

Do I know anyone who's into #LoRa #meshNetworks? #meshCore #meshtastic etc? Just found out about these today and am already hooked and planning to build/expand the local networks (north of Toronto etc).

Hello @Indivisibleteam -- a resilience note for public actions: cell phones expose both message content and location (e.g., Stingray devices). Pairing phones with LoRa mesh networking via the Reticulum protocol enables encrypted, non-locating, device-to-device & hidden-IP worldwide messaging.

Happy to share practical, field-tested insights if useful.

#Indivisible #DigitalResilience #MeshNetworks #LoRa #Reticulum #EmergencyComms #CivilResistance #TechForGood #Resilience #Decentralization

First Yggdrasil Network release candidate in a while, will likely aim for a general release later this week.

https://github.com/yggdrasil-network/yggdrasil-go/releases/tag/v0.5.13-RC.1

#yggdrasil #yggdrasilnetwork #meshnet #meshnetworking #meshnetworks #e2ee #decentralized

First Yggdrasil Network release candidate in a while, will likely aim for a general release later this week.

https://github.com/yggdrasil-network/yggdrasil-go/releases/tag/v0.5.13-RC.1

#yggdrasil #yggdrasilnetwork #meshnet #meshnetworking #meshnetworks #e2ee #decentralized

First Yggdrasil Network release candidate in a while, will likely aim for a general release later this week.

https://github.com/yggdrasil-network/yggdrasil-go/releases/tag/v0.5.13-RC.1

#yggdrasil #yggdrasilnetwork #meshnet #meshnetworking #meshnetworks #e2ee #decentralized

First Yggdrasil Network release candidate in a while, will likely aim for a general release later this week.

https://github.com/yggdrasil-network/yggdrasil-go/releases/tag/v0.5.13-RC.1

#yggdrasil #yggdrasilnetwork #meshnet #meshnetworking #meshnetworks #e2ee #decentralized

First Yggdrasil Network release candidate in a while, will likely aim for a general release later this week.

https://github.com/yggdrasil-network/yggdrasil-go/releases/tag/v0.5.13-RC.1

#yggdrasil #yggdrasilnetwork #meshnet #meshnetworking #meshnetworks #e2ee #decentralized

Great to catch so many of you at the LoRa mesh networking intro session this evening! and super questions & discussion about communicating via #meshnetworks and #meshcore

Rick Carlino: My first meshtastic network. “Working with Meshtastic has been fun. It’s impressive how a few inexpensive devices can form a communications network covering many miles. The system is limited, but within those constraints it feels magical to send a message into the ether and have it hop across a county line to a stranger. Meshtastic isn’t very useful alone, but as more people join, […]

"In the early 2000s, mesh networks were on the verge of being everywhere and connecting everything. Daisy-chaining many devices like beads on a string would “accommodate hundreds or thousands of nodes” and provide “low, up-front cost, easy network maintenance, robustness, and reliable service coverage,” according to mesh-networking forecasts from 2004 and 2005, respectively.

But it would take over two decades to get there. During that time, a range of mesh protocols and standards emerged, each claiming to be the solution—only to flame out or splinter into new incompatibilities.

In 2026, mesh networks that can work together in real-world settings are finally arriving. But rather than a single dominant standard that could power all variety of mesh networks, three separate but interoperable technologies are instead reaching maturity more or less simultaneously: Thread 1.4, a mesh standard for low-power smart-home devices; the Wi-Fi 7 standard for high-bandwidth computing; and the smart-home protocol Matter, which acts as a translator, so devices on different mesh networks can talk to one another. Together, these three provide the beginnings of compatibility and interoperability that has eluded mesh proponents for so long.

However, this multistandard compromise may well only be a way station. “I expect that one mesh technology will eat all the others eventually, possibly incorporating them,” said Mihail Sichitiu, professor of electrical and computer engineering at North Carolina State University, in Raleigh. “Maybe not immediately, but eventually. Looking at how other things evolved, it’s just a matter of time.”"

https://spectrum.ieee.org/mesh-network-interoperable-thread

#Mesh #MeshNetwork #Interoperability #Wifi7 #Thread14 #Matter #SmartHomes #MeshNetworks #MeshNetworking

11 #OffGridCommunication Methods: Staying Connected in Emergencies and Remote Areas

September 18, 2023

"In today's digital age, staying connected is often taken for granted. We rely heavily on our smartphones and the internet to keep in touch with loved ones and access vital information. However, in emergency situations or remote areas where traditional communication methods may become unreliable or fail, it is essential to have alternative means of staying connected. Off-grid communication techniques offer a lifeline for individuals to communicate with others and seek help when needed.

Here are five reliable and realistic off-grid communication methods that let you have a conversation like you would on a cell phone when your cell is down for the count:

1. Ham Radio: Making Connections, No Matter the Distance

When it comes to off-grid communication, few methods can match the power and versatility of ham radios, also known as amateur radios. Ham radios work by transmitting and receiving signals through antennas.

Their range of communication can vary depending on factors such as frequency, antenna height, atmospheric conditions, and obstacles like buildings or terrain. In optimal conditions, ham radios can communicate over hundreds of miles, potentially even globally. Ham radios are beneficial for emergency communication and can provide a means of staying in touch with others during natural disasters or in remote wilderness areas. It is important to note that obtaining a license and some technical knowledge is necessary to operate a ham radio legally and effectively.

When traditional infrastructure falters, or in off-grid scenarios where traditional cellular networks are inaccessible, ham radios prove their worth as a reliable means of communication.

2. CB Radio: Keeping Your Group Connected

For those looking for a simple and accessible option, CB radio comes to the rescue. Citizens Band radio, or CB radio, operates on a set of 40 channels and does not require a license to use. It is a simple and effective off-grid method that offers a reliable means of communication within a localized area. CB radios are commonly used by truck drivers, outdoor enthusiasts, and emergency responders. CB radios work by transmitting and receiving radio signals using handheld devices or mounted units in vehicles.

While their range is shorter compared to ham radios, typically reaching a few miles, CB radios still prove effective for staying connected with your group while exploring remote areas or during emergencies when cellular networks go down. With their simplicity and ease of use, CB radios ensure you'll be able to communicate when it matters most.

3. Satellite Phone: Communication Without Boundaries [Note: Will not work after #KesslerSyndrome events]

When you find yourself in areas without cellular coverage, satellite phones step in to bridge the gap. By connecting to orbiting satellites, these devices provide global coverage, allowing you to make calls and send messages from virtually anywhere on the planet.

Whether you're exploring remote regions or facing emergencies in areas lacking traditional infrastructure, satellite phones become invaluable tools for staying connected. It's worth noting that satellite phones may come with a higher price tag compared to other options, but their ability to keep you in touch with the world makes them well worth the investment.

4. Walkie Talkies: Portable and Practical Communication

If you're looking for a portable and practical off-grid communication solution, look no further than walkie talkies. These handheld devices provide short-range communication through radio waves. They are simple to use and do not require any licensing.

Walkie talkies work by transmitting and receiving radio signals between two or more devices. The range of communication for walkie talkies typically varies based on factors such as terrain, obstacles, and the power of the devices. In general, walkie talkies can provide effective communication in the range of a few miles, making them ideal for coordinating activities within a group or staying in touch during outdoor adventures. Walkie talkies are commonly used by hikers, campers, and event organizers, enabling quick and reliable communication in off-grid situations.

5. Mesh Networking Devices: Building Connections Without Infrastructure

When traditional infrastructure is unavailable, mesh networking devices step in to establish connections where none exist. Devices like goTenna or Sonnet create peer-to-peer networks, forming a web of interconnected devices. They create a decentralized network by linking multiple devices together, with each device acting as a "node" or connection point that can directly communicate with nearby devices.

It's important to note that the range of mesh networking devices depends on factors such as the number of devices in the network and the surrounding terrain. These devices excel in situations where communication becomes difficult due to the lack of infrastructure.

Two "One Way Street" Options

Sometimes, off-grid communication becomes a "one-way street" situation where you either need to receive or send critical information without engaging in a full-blown conversation. Two options that fit this scenario are shortwave radios and GPS messenger beacons.

Shortwave radios provide up-to-the-minute information during emergencies, even when cell phone towers fail. As seen in the case of the Maui fires, communication failures left people without a way to get in touch with loved ones, and critical cell phone alerts went undelivered. In such scenarios, shortwave radios can provide reliable and up-to-the-minute information, potentially saving lives.

GPS messenger beacons, on the other hand, allow users to send distress signals and their precise coordinates to rescue services. This enables quick and targeted assistance in emergency situations, even when direct communication is not possible.

Four Low-Tech Off-Grid Communications Techniques

Off-grid communication doesn't have to be high-tech to be effective. The classic survival movie scene of building a roaring fire on a deserted island/remote mountain/in a dense jungle to signal for rescue is a cliche for a reason and speaks volumes of the power of low-tech and no-tech methods to communicate the need for help. From #SmokeSignals to #flares to #mirrors to #whistles, resources as simple as these can help save the day. These low-tech visual and auditory signaling techniques can be highly effective in emergencies when you simply need to be spotted or heard.

Bottom Line: Off-Grid Communication Methods can be a Critical Lifeline

Mastering off-grid communication techniques is vital for increasing self-reliance and preparedness in emergency situations and remote areas. By understanding and utilizing these methods, individuals and their families can stay connected, seek help when needed, and increase their chances of survival. From a high-tech ham radio or satellite phone to a simple radio and whistle, having a range of off-grid communication tools is an essential part of any emergency preparedness plan."

Source:
https://www.survivalfrog.com/blogs/survival/11-off-grid-communication-methods-staying-connected-in-emergencies-and-remote-areas

#SolarPunkSunday #MeshNetworks #HamRadio #CBs #WalkieTalkies #OffGridCommunications #EmergencyCommunication #OffGridCommunication #StayingConnected

Like I mentioned, I don't know a lot about #MeshNetworks, but I'd love to know what others think of the #MeshTastic systems. This seems to be a pretty up-to-date guide on how to set up a Mesh network (there wasn't a date on the piece, but they referenced QR codes). Personally, I'd rather go the #HamRadio route, but there's a few hoops to jump through for that (like the Ham radio test and licensing).

How to Set Up Meshtastic: A Beginner-Friendly Guide You Need

"Meshtastic enables encrypted communications over distances of 11 kilometers with uninterrupted line of sight. Setting up this powerful technology is surprisingly simple.

"A LILYGO® TTGO Meshtastic T-Beam board costs just $30 and ships with pre-installed software. The devices are equipped with AES256 encryption to ensure secure communications between authorized radios. A single 18650 battery powers these units for days without charging, and solar cells can keep them running indefinitely.

"This piece covers the complete setup process for #TBeam, #HeltecV3, and #TDeck hardware. You’ll learn everything about antenna installation, firmware updates, and message configuration to optimize your device’s performance in #OffGrid conditions."

https://www.besthamradio.com/how-to-set-up-meshtastic/

#SolarPunkSunday #OffGridCommunication #EmergencyCommunication

Since I'm not familiar with #MeshNetworks, I can't vouch for #BearTooth #communication devices. I do know that the first model (which was a lot cheaper), was touted to have a range of 2 miles, but was a pain to pair up devices, and also had a bad reputation of not working. So, when I came across BearTooth MKII at a much higher cost, I wonder if they've improved on the bugs from the older versions. If anyone knows more about BearTooth or mesh networks in general, please feel free to chime in...

https://beartooth.com/

#SolarPunkSunday #OffGridCommunication #EmergencyCommunication #CommunicationDevices #MeshNetworks

[tbd] NOTACAMP 2025

Het Groene Veld, Amsterdam, Friday, July 4 at 12:00 PM GMT+2

[tbd]

(Nederlands onderaan)

4 July 2025 @ 12:00 - 6 July 2025 @ 23:42

[tbd] NOTACAMP Non Obvious Technological Approaches

[tbd] is a 3 day festival with talks, workshops, performances, parties and alternative approaches to technological realities.

There will be talks and discussions about topics related to society, hacking, technology, art, science and whatever else participants bring to share.

Dates:

• Friday July 4: 12:00h - 04.00h

• Saturday July 5: 12:00h - 04.00h

• Sunday July 6: 12:00h - 23.42h

• Entrance fee: on donation

[tbd] is a participatory event [tbd] is a participatory event organised by anyone who is interested in contributing. It is an open invitation to participate in co-creating an environment where knowledge is shared and infrastructure is decentralised.

There is space to organise workshops, debates, present your ideas or projects, and engage with other inhabitants of the event.

There will be talks and discussions about topics related to society, hacking, technology, art, science and whatever else participants bring to share.

In the afternoons and evenings we have beginner workshops planned where you can learn to solder and make some reactive led lights or build a portable synthesizer and learn the basics of synthesis with ardutouch.

There will also be mesh networking workshops, sessions on remixing electronic waste and lots more...

Come teach, learn and share with us in the afternoons and party through the night.

Read more (or submit a proposal) at: https://tbd.camp

----------------

4 juli 2025 @ 12:00 - 6 juli 2025 @ 23:42

[tbd] NOTACAMP Niet voor de hand liggende technologische benaderingen

[tbd] is een 3-daags festival met lezingen, workshops, optredens, feesten en alternatieve benaderingen van technologische realiteiten.

Er zullen gesprekken en discussies zijn over onderwerpen gerelateerd aan samenleving, hacken, technologie, kunst, wetenschap en alles wat deelnemers willen delen.

Data:

• vrijdag 4 juli: 12:00u – 04.00u

• zaterdag 5 juli: 12:00u – 04.00u

• zondag 6 juli: 12:00u – 23.42u

• Entree: donatie

[tbd] is een participatief evenement dat wordt georganiseerd door iedereen die geïnteresseerd is om een bijdrage te leveren. Het is een open uitnodiging deelnemen aan het co-creëren van een omgeving waarin kennis wordt gedeeld en infrastructuur is gedecentraliseerd.

Er is ruimte om workshops, debatten te organiseren, je ideeën of projecten te presenteren en in gesprek te gaan met andere bezoekers van het evenement.

Er zullen lezingen en discussies plaatsvinden over onderwerpen die verband houden met de samenleving, hacking, technologie, kunst, wetenschap en wat de deelnemers nog meer meebrengen om te delen.

In de middagen en avonden hebben we workshops voor beginners gepland: je kunt leren solderen en reactieve led-lampen maken of een draagbare synthesizer en leer de basisprincipes van synthese met ardutouch.

Er zal ook mesh netwerk workshops, sessies over remixen van elektronisch afval en nog veel meer…

Kom ’s middags lesgeven, leren en delen met ons en feest door de nacht in.

Lees meer (of dien een voorstel in) op: https://tbd.camp

https://events.todon.eu/event/tbd-notacamp-2025

In a world where control of #communication networks is increasingly centralized, #DIYnetworks offer an independent alternative. This presentation shows how to build up your own autonomous #meshNetworks with low-cost hardware components and open source tools such as #Reticulum and #MeshChat. We will present practical steps for the construction, configuration and integration of sensors, communication and computing power. We are also discussing how such #networks can be used in #humanitarianCrises, such as the organisation of aid measures through solidarity initiatives.

https://media.ccc.de/v/eh22-97-eggceptional-meshnetworking-#t=950

This workshop offers a detailed journey through the world of do-it-yourself radio networks and #autonomousCommunication structures. Using an exemplary system structure, we show how to realize cost-effective, flexible mesh networks with #LoRa #RNode, Reticulum and MeshChat. In doing so, we not only dedicate ourselves to the technical requirements – such as the optimal hardware selection, antenna adaptation and network planning (keyword “Network Planning 101”) – but also consider how these technologies can be used for #humanitarian purposes, for example at #CADUS.

Are there people doing #meshtastic #meshnetworks in #connecticut or #newengland on here? I met some people talking about it at #bsidesct and I’d like to set up some a useful node

🛰️ Attention ATAK Enthusiasts! 🛡️

You asked, we're delivering! Meshtastic developer Ben, aka "thebentern", walks you through the official Meshtastic ATAK plugin in our latest video. 🎥

🔗 Check out the video: https://youtu.be/PZOkaiSqKaM

#meshtastic #atak #meshnetworks #tacticalcomms #lora