This Tiny Radio Lets Me Send Texts Without Wi-Fi or Cell Service
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It is cool! The barrier to entry is relatively low. The only thing to really worry about is:
- What band/frequency is appropriate for you country.
- Are there others around to which you can connect?
If there's not a lot of people around it's not the end of the world. Nodes can connect over the Internet via MQTT servers. Yes, this defeats the purpose of having an offline/decentralized communication platform, but it is a good stop gap until more nodes are put up.
Here's a sample of what I can see in a somewhat large-ish Midwest City in the US (there's about 63 nodes I can reach by hopping through relays).
I got mine recently in a dxent aized city and while there are plenty of nodes popping up on the map, the local channel is pretty quiet. Is that normal?
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I maintain three of these devices, if anyone has any questions.
I got mine recently in a dxent aized city and while there are plenty of nodes popping up on the map, the local channel is pretty quiet. Is that normal?
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Yeah, we had to make a weather app on longfast to fill the void. Tech people tend to not talk all that much. We are the strange ones
Most of the weather app was made from a reddit post back a year or so ago. I have no idea where though. App is a python script here if your interested.
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I don't know. It's the same for me but I got a pretty bad reception. The only time I saw some messages was when someone was sending some from a plane, so I guess it was a special occasion.
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Yep, that can be normal. For my city, the local group has a private (but free to join) channel that's a bit more active.
Do a web search for meshtastic and your city and see if one pops up.
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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.
A portion of the 5GHz WiFI band overlaps with the 5.8GHz ham band too. There are also a few WiFi radios that will also work above the US WiFi band where they can operate without interference from other license free devices. Those are used in the HamWAN network.
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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.
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.
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Some people already are
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.
Isn't LoRa proprietary? Like, Meshtastic is open source, but something about the radio itself is proprietary tech?
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Eisenhower also didn’t drone strike anyone.
General Eisenhower definitely bombed some people.
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Clickbait title. Just say it's meshtastic.
I mean it's an article for people like me who have never heard of that
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Theoretically you can get 50 ish miles or more with line of sight. In practice, you can get around 10 ish with repeaters. With around 30 devices, our city has effective coverage.
You also have options to use MQTT if you want to make sure a message gets through. But that requires an internet connection.
What about without line of sight? If I get one of these is it going to work while it's sitting on my desk, or am I going to have to mount some antennas on the roof to actually make it usable? The maps only show like three other people in my city with one, so I'm not sure how useful this will actually be for me.
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I maintain three of these devices, if anyone has any questions.
How does this differ from IP over ham radio? It seems like in general, it would just be lower distance and greater reliance on nodes near you, with the trade off being smaller equipment.
IP over Ham Radio via New Packet Radio - TheModernHam
New packet radio by F4HDK offers the ability to create a LAN or connect to the internet via amateur radio RF links on the 70cm ham band.
TheModernHam (themodernham.com)
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Eisenhower also didn’t drone strike anyone.
Eisenhower had probably the worst foreign policy record because of the Dulles bros. Almost all the CIA government coups that happened occurred during Eisenhower and ended up in disasters decades later.
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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.
“Money can be exchanged for goods and services” - Homer Simpson
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Companies are starting to manufacture repeaters and they are not that expensive. You can get one for about 100 Federal Reserve Notes.
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.
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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.
They're a godsend for camping, and would be legendary in a disaster event.
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It is cool! The barrier to entry is relatively low. The only thing to really worry about is:
- What band/frequency is appropriate for you country.
- Are there others around to which you can connect?
If there's not a lot of people around it's not the end of the world. Nodes can connect over the Internet via MQTT servers. Yes, this defeats the purpose of having an offline/decentralized communication platform, but it is a good stop gap until more nodes are put up.
Here's a sample of what I can see in a somewhat large-ish Midwest City in the US (there's about 63 nodes I can reach by hopping through relays).
Where'd you get that map from?
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It allows us to make a mesh network (interconnected nodes where you can contact a node even if it's not in range for you, by using other nodes) with Lora radio devices. Lora is slow but has long range. I think it works better when you have line of sight, like if someone can put a node on a mountain, it would help everyone.
I think people might have sent audio with it but it's mostly useful for text messages. It could be useful if the Internet is down, maybe, but it's more like a toy.
It could be useful if the Internet is down, maybe, but it’s more like a toy.
Since LoRa devices use very little power this can be useful when there is no electricity.
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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.
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.
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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.
"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.
