• TryingSomethingNew@lemmy.world
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    7 days ago

    Nice article on Meshtastic. The problem is that, like anything, the actual distance is a lot more dependent on line of sight and the actual mesh existing. Which means we’d need a LOT more people to adopt these and put up repeaters for them to be useful. Which is doable, but not cheap.

    • shortwavesurfer@lemmy.zip
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      7 days ago

      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.

      • Korhaka@sopuli.xyz
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        5 days ago

        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.

        • shortwavesurfer@lemmy.zip
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          6 days ago

          Remember, that map is volunteer and only shows nodes of a day or less.

          For example, I am the only node in my area who voluntarily puts myself on the map, but there are 10 others who do not.

    • shortwavesurfer@lemmy.zip
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      7 days ago

      Companies are starting to manufacture repeaters and they are not that expensive. You can get one for about 100 Federal Reserve Notes.

      • TryingSomethingNew@lemmy.world
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        7 days ago

        Yeah, I’ve seen some clever stuff where they take a solar powered light and wire in a Heltec V3 for $30-$40. But I thought one of the new upcoming standards (WiFi? Cell?) incorporated a mesh capability.

      • Thwompthwomp@lemmy.world
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        7 days ago

        Sucks you can’t charge it and have to instead go to a central bank to exchange minted coins for notes that you can exchange for the commodity that is the radio.

    • IllNess@infosec.pub
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      7 days ago

      I always thought these were more like walkie talkies for messaging than telephones that you can call anyone.

      Like it would be good if cell serivce goes down.

      • shortwavesurfer@lemmy.zip
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        7 days ago

        That’s pretty much exactly what they are. Text message in walkie-talkies. With the added benefit that if your friend can’t hear you, but another friend is in between, your message automatically gets relayed through their walkie-talkie.

        • MangoCats@feddit.it
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          7 days ago

          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?

          • Anivia@feddit.org
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            6 days ago

            would the network be willing to carry my signals?

            That is entirely up to the whim of your neighboring nodes to decide

            • ggtdbz@lemmy.dbzer0.com
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              6 days ago

              Everything I learn about this project is so cool. I can’t go through the docs right now, but I’m assuming it can prioritize things like emergency communication over sensor data.

              There’s no public nodes in a 200+ km radius around me on that site someone linked, so something tells me I’ll have to do a lot of guerilla solar panel installation if I want to anonymously set up something.

              I’ve thought about it on and off over the past two years, more of a private network for family and friends than anything, for emergencies and so on. The real, big problem is that I could be accused of espionage and thrown into jail forever if I do this. So I don’t think I’ll see anyone putting any nodes up for the foreseeable future. At least not public nodes.

    • Eheran@lemmy.world
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      7 days ago

      At that point, given the extremely small bandwidth, we might as well just use a massive wifi, everyone already has the required hardware for that instead of producing more trash for a pretty much non-existing use case.

      • 0x0@lemmy.zip
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        7 days ago

        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.

        • notgold@aussie.zone
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          5 days ago

          We are in talks to build one for a local power utility. These are cheaper for nice-to-have sensors that aren’t critical. Most electricity meters in Victoria use a mesh network provided through silverspring devices to collect usage readings.

          I’ve also heard about a rural water utility using a mesh network to connect water meters together to reduce the number of times an onsite reading is required.

          Telcos are already trying to compete with mesh networks by providing low bandwidth LTE-M services that are lower cost for utilities. Nokia are pushing 450connect, 450 alliance, etc as more competitors also.

          There are plenty of use cases for low bandwidth systems and services. Isolated network is great when the telcos have pages too.

      • ilovepiracy@lemmy.dbzer0.com
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        7 days ago

        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.

      • shortwavesurfer@lemmy.zip
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        7 days ago

        You can have one or the other. If you choose high bandwidth, you’re going to get very short distance because you can’t do serious error correction, etc. If you choose long range, you’re going to get low bandwidth because you need to include error correction, etc. In the transmissions.

        • Captain Aggravated@sh.itjust.works
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          7 days ago

          Funny thing about Wi-Fi, it overlaps with an Amateur radio band (the 2.4GHz spec does) and so hams are allowed to run Wi-Fi with no encryption but a tremendous amount of power and high gain antennas on like the highest channels.

        • LifeInMultipleChoice@lemmy.dbzer0.com
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          7 days ago

          I wonder how much you could Jerry rig up Wimax for these days. That’s like 30 miles of range. I remember thinking if I was only going within a 15 mile area of my place it would have been cool, but prices 10 years ago immediately made it a no

      • artyom@piefed.social
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        7 days ago

        Some people already are

        https://map.nycmesh.net/

        But the point of LoRa is in the name, long range. Wifi barely reaches outside my house. Also a WiFi mesh is dependent on a variety of complicated and proprietary networks and systems while meshtastic is entirely independent.

            • Captain Aggravated@sh.itjust.works
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              6 days ago

              Yes. LoRa (from “long range”, sometimes abbreviated as “LR”) is a physical proprietary radio communication technique.[2] It is based on spread spectrum modulation techniques derived from chirp spread spectrum (CSS) technology.[3] It was developed by Cycleo, a company of Grenoble, France, and patented in 2014.

      • deafboy@lemmy.world
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        7 days ago

        Ever since I switched to lemmy, I constantly stumble upon people trying to guilt other people for their hobbies. That’s pretty unhealthy.

        Whoever reads this, don’t feel guilty living your life. Spend time on whatever you’re passionate about. Build new things, even if they do not have a rational use case at the moment. They might play an important role in your future.

        • MangoCats@feddit.it
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          7 days ago

          WiFi goes down and people sometimes NEED to communicate instead of streaming Netflix.

          This is just an alternate channel, if Eheran doesn’t have the imagination to understand how low bandwidth can still be extremely valuable, as compared to, say, screaming at the top of your lungs to attempt to be heard 5 miles away, then… I’m not really interested in what they think.

          • Captain Aggravated@sh.itjust.works
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            7 days ago

            “WiFi goes down”

            Or more to the point, the ISP fails. A Wi-Fi router isn’t that much more difficult to power than a meshtastic node, but my old ISP, I don’t think they even bothered to install UPSes, if the power was out, so was the internet. I could keep my Wi-Fi up indefinitely, but it’s basically useless outside my house.