If I wanted to transmit, for example, temperature and humidity from a sensor once every 5 minutes, would the network be willing to carry my signals?

I'm running about 1w per device ATM.

So yeah it sips energy. There's a lot of nodes in the mountains that are solar powered. They work.

LoRa has been around for a while trying to break through with different devices, some of it does seem useful, but it's a tough sell to invest in something without knowing where the network will go. A carrier model or something else, maybe subsidies, is needed.

Device Configuration | Meshtastic

Learn about and compare device roles such as Client, Repeater, and Router as well as other Device settings.

(meshtastic.org)

SENSOR is one of the defined device roles. And whether for personal automation or public information, it is a reasonable use case for the network.

Man I've been seeing so much about these over the last few weeks, I'd love to get my hands on one

My wife and I each have a radio, as do several of my friends. They're handy for anything where you may not have cell coverage, like camping. We also use them at protests, to avoid the heavy surveillance that's being done on cell networks. Even if the authorities start looking at Meshtastic, everything except the public channel uses PGP end-to-end encryption, and there is no middleman that has access to the unencrypted data.

We have also put up a repeater node. It's on top of a house at the top of the highest ridge near us. Before it went up we rarely saw more than our own nodes. Now we see several dozen, and sometimes a lot more. And the repeater serves the whole community, not just us. The beauty of a mesh is that everyone contributes to everyone else's coverage.

The mesh in our city is growing rapidly right now. Not only are there a lot of people getting their own nodes, there are a surprising number of people putting up repeaters to help spread the coverage. It's amazing to watch our whole neighborhoods suddenly appear as gaps are filled in.

How do I do this? Shats the easiest way to get started?

Both a personal device and a repeater on my house

Easiest and least expensive are a little different, so I'll talk briefly about both.

The easiest is to go on Etsy and search for Meshtastic. You will find plenty of people who will build you a ready-to-go unit, both individual radios and solar-powered repeaters. (If you plan to put your repeater somewhere with power you can use any radio as a repeater, just put a good antenna on it.) Pre-built units start at around $60 and can go up into the hundreds, but $60 to $90 will get you a great personal radio.

The least expensive is to order a kit from one of the many companies that sell them. If the kit does not come with a case, check Etsy for cases that match your kit. Most kits do not require soldering, you just have to plug in various cables and connectors, then fit everything into the case. Some actually come fully assembled. This approach generally costs somewhere between half and two-thirds of what a pre-built setup will run. Kits start as low as $10, although most or $20 to $40, and cases are mostly $20 to $35.

One of the harder parts is to figure out which radio kit you want, but there are just two major types. Those built around the ESP32 processor tend to be a little less expensive and offer the option of WiFi, but they have a much shorter battery life. Those built around the nRF52 processor cost a little more, do not offer WiFi, but have nearly 10 times the battery life. WiFi is only used in a few specific cases, usually by repeaters and not personal units, so you may well not need it. Battery life is not usually an issue for personal radios, since nearly all of them will go for a full day between charges, but sometimes you may want more than that. Stand-alone repeaters that run off solar panels are almost all based on the nRF52 because of the battery life.

The most common starter radios are based on the Heltec V3 kit, which is based on the ESP32. It has been around a long time, it is relatively inexpensive, and it can do pretty much everything. The only downside is battery life, which may or may not matter to you. Unless that's a concern, you can't go wrong with a V3. My personal favorite is the T114 kit, also from Heltec, which is based on the nRF52. It is much like the V3, but without WiFi and with much better battery life.

I would wait until you've played with a personal radio before buying a repeater. Every Meshtastic radio acts as a repeater, so you don't necessarily need a dedicated repeated. Find out how many nodes are in your area and what kind of coverage you get. If there aren't many nodes, or distance is limited, you can consider a dedicated repeater.

Basically, a repeater is just a node with a good location that's put in a good location, up as high as possible. Because Meshtastic radios use very little power, it is practical to make completely self-sufficient solar repeater units that never require charging. You can put one of those on your roof, up in a tree, or on top of a nearby hill or mountain, without having to worry about regularly climbing back up there.

I strongly recommend that you go to meshtastic.org and read through the Getting Started documentation. It provides a lot more detail (and less personal opinion). And check out the Meshtastic communities on Lemmy. Have fun!

Easiest and least expensive are a little different, so I'll talk briefly about both.

The easiest is to go on Etsy and search for Meshtastic. You will find plenty of people who will build you a ready-to-go unit, both individual radios and solar-powered repeaters. (If you plan to put your repeater somewhere with power you can use any radio as a repeater, just put a good antenna on it.) Pre-built units start at around $60 and can go up into the hundreds, but $60 to $90 will get you a great personal radio.

The least expensive is to order a kit from one of the many companies that sell them. If the kit does not come with a case, check Etsy for cases that match your kit. Most kits do not require soldering, you just have to plug in various cables and connectors, then fit everything into the case. Some actually come fully assembled. This approach generally costs somewhere between half and two-thirds of what a pre-built setup will run. Kits start as low as $10, although most or $20 to $40, and cases are mostly $20 to $35.

One of the harder parts is to figure out which radio kit you want, but there are just two major types. Those built around the ESP32 processor tend to be a little less expensive and offer the option of WiFi, but they have a much shorter battery life. Those built around the nRF52 processor cost a little more, do not offer WiFi, but have nearly 10 times the battery life. WiFi is only used in a few specific cases, usually by repeaters and not personal units, so you may well not need it. Battery life is not usually an issue for personal radios, since nearly all of them will go for a full day between charges, but sometimes you may want more than that. Stand-alone repeaters that run off solar panels are almost all based on the nRF52 because of the battery life.

The most common starter radios are based on the Heltec V3 kit, which is based on the ESP32. It has been around a long time, it is relatively inexpensive, and it can do pretty much everything. The only downside is battery life, which may or may not matter to you. Unless that's a concern, you can't go wrong with a V3. My personal favorite is the T114 kit, also from Heltec, which is based on the nRF52. It is much like the V3, but without WiFi and with much better battery life.

I would wait until you've played with a personal radio before buying a repeater. Every Meshtastic radio acts as a repeater, so you don't necessarily need a dedicated repeated. Find out how many nodes are in your area and what kind of coverage you get. If there aren't many nodes, or distance is limited, you can consider a dedicated repeater.

Basically, a repeater is just a node with a good location that's put in a good location, up as high as possible. Because Meshtastic radios use very little power, it is practical to make completely self-sufficient solar repeater units that never require charging. You can put one of those on your roof, up in a tree, or on top of a nearby hill or mountain, without having to worry about regularly climbing back up there.

I strongly recommend that you go to meshtastic.org and read through the Getting Started documentation. It provides a lot more detail (and less personal opinion). And check out the Meshtastic communities on Lemmy. Have fun!

Not much bandwidth to know do much beyond text, so use-cases are probably very limited already.

Have a look at meshmap.net. That shows people who have voluntarily put themselves on a map.

Although it can be a serious underestimation, for example in my area, I'm the only one who lists myself on the map, but there are about 10 other nodes that don't

Edit: Also, the number of nodes on MeshMap has pretty much doubled in six months since I started playing with it.

Hmm, more than I expected actually. None in my town but one in a nearby town and the nearest city.

Is there a limit to how far can you communicate through multiple nodes? Also is there anything special for setting up a repeater compared to just communicating on the network?

Though i don't know anyone else that would be likely to use something like this sadly.

In trying times you're missing the big picture. If they were more commonplace, you'd have a decentralised communication network that can't be shut down by the government.

SMS style communication?

pretty much non-existing use case.

...for you.

I can see a use-case where a low-powered off-grid communication device can be useful.

Save worthy post. Not the person who asked, but thanks for the extremely detailed response!

Thank you for the detailed reply! Yeah I realize now Mestastic.Org has everything I need.

Planning to prolly get:

A rak wireless kit for a local repeater on my roof powered via PoE, and then a TTGO TEcho for my personal device.

I know that I should just get the latter and play with it first, but I live high on a hill with a great vantage point of the city so feels like a disservice to the community if I don't also host a repeater.

One thing I'm curious about, is if I use it via poe, can I also send messages via the repeater? I.e. locally from my network initiate a message through my repeater?

I would want it in repeater mode so it would forward any message even ones I don't have the encryption key for.

Even for that LoRa can basically only act as a bridge, unless LoRa radios start being built into phones instead of being separate devices.