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The Serval Mesh?
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Bluetooth goes like 3-5m at max? Also bluetooth seems to be more battery consuming than low-profile wifi to me (maybe even normal wifi if you have a good signal) .
But yeah i also couldnt find proper solutions, i actually only found Serval Mesh what is Android only and has a very different aim.
On android: https://play.google.com/store/apps/details?id=org.servalproject
A Mesh network is what you're looking for: https://en.wikipedia.org/wiki/Mesh_networking
A server could be setup on a Raspberry Pi 2 if you were really out to save power, but performance issues might exist.
It already exists and has for a while.
https://play.google.com/store/apps/details?id=org.servalproject&hl=en
The Pentagon version is basically a Not Invented Here response, or maybe another way to hand US taxpayer money to a favored contractor.
I was using a mesh network app to make phone calls and send messages, serval in the play store. The phones to receive and call only had that installed. When you picked up the call the screen would black out. There wasn't any need to install a kiosk mode on the prop phones but it should be possible. The only other thing was router with no internet access.
https://play.google.com/store/apps/details?id=org.servalproject uses WiFi
I've seen a GSM project meant to provide free service in Africa. Open source box, I think they will share one ( or a few) line(s) out of the village, but within the village they can call each other all they want
Google's project loon should continue to offer internet. Facebook has a similar project.
Might check this out:
https://play.google.com/store/apps/details?id=org.servalproject&hl=en
> Can be installed during an emergency from only one phone
I haven't tested it out but it sounds pretty damn cool. It was made for disaster scenarios.
> Mas a ideia aqui era mesmo ter um telemóvel numa ponta que mandava os dados e outro em outra ponta que os recebia
Mas com acesso à net ou apenas para troca de informação entre ambos?
Para acesso à net, é como te disse à pouco, um modem ligado a um pc e servidor PPP.
Para ligações directas, ambos teriam de estar com root, se calhar limita um pouco a tua lista de contactos.
Em tempos também saiu uma aplicação tipo mesh network que usava tanto o bluetooth, como wifi para enviar mensagens entre utilizadores, consoante a distância entre users. Basicamente se eu e tu estivéssemos dentro da mesma área a app comunicava entre si e passava a mensagem para o próximo peer até chegar ao destinatário.
Voltando ao tópico, continuo a achar que é possível mas trabalhoso xD
EDIT:
A app de mesh:
https://play.google.com/store/apps/details?id=org.servalproject&hl=pt_PT
O projecto:
http://www.servalproject.org/ (actualmente com erro)
>We either need to make a new net somehow, and fast
>or disconnect ourselves to get away from it
Serval App can help to share internet via wifi enabled Android phones: https://play.google.com/store/apps/details?id=org.servalproject
Wikipedia has a basic introduction. https://en.wikipedia.org/wiki/Mesh_networking
If you want to try out some mesh communications software, The Serval Project has lots of nice work done. http://www.servalproject.org/
This is the type of communications (for whatever type of data) that works well when you have disasters that take down lots of communications infrastructure or works well when you have an oppressive government try to shut down communications. There's SNET in Cuba for example.
Try it out yourself. Connect directly between two phones, for example:
https://play.google.com/store/apps/details?id=org.servalproject
Just as ideas like TCP/IP or the Lightning Network can find routes between connected nodes, so too can mesh networks be a way of ensuring decentralised communications, whether that be for text, voice, or data communications like the internet.
Open Garden also has done a lot of work on creating this sort of decentralised ISP.
> as presumably mobiles are useless now
I completely forgot to mention, there is an app for Android called Serval Mesh, its used in areas where there is no cellphone reception, as long as others have the app as well you can communicate with them from smartphone to smartphone without the need for a tower. effective range is on average around maybe 50m but can be boosted with their own special range extenders to nearly a mile. Supports voice and text messaging.
~~For iPhone users your best best is to use the phone as a distraction and throw it into a fire which then goes boom.~~
Sorry I mean use firechat which works for both android and iPhone users and only supports text messaging.
Edit: make sure to keep a separate copy of the app on your phone so you can send it to others.
totes agree. besides, it's an art project:
> The designers don't plan on making the kit available; instead, it's designed as a "provocation" to stimulate discussion about the nature of protest in the 21st century.
so here's a more open idea/guide:
> It incorporates something like Sukey, the British app to help protesters avoid "kettling,"
i think situational awareness helps more
> So the Backslash kit includes an easy-to-operate meshing wireless system > Backslash offers you a low-powered cellphone jammer that makes it theoretically impossible for a Stingray to read it, while still leaving it free and uncovered for use as a video/still camera
or buy a $30 android phone from walmart with cash on the way to the protest, and sideload a wireless mesh app (serval is an option)
> The Backslash personal cloud drive tries to exfiltrate your images to an offsite storage, while taking care of operational security by wiping out identifying metadata that your mobile device will usually default to adding. again, a brand-new twitter/instagram account on your cheap, brand-new phone running on a mesh network would probably be better.
also, wear a hat and a keffiyeh everywhere you go that day, especially walmart while buying the phone, and en route to the protest - there's enough cctv/drone cameras around to track you. stuff some thin/cheap touchscreen gloves in your pocket to handle the phone with, as well. the keffeiyeh has the added benefit of not being too suspicious, and can help to hide the lightweight fire escape hood you can use to protect from tear gas, (or dust mask and lab goggles) which is cheaper to buy with cash than a protective (gas) mask, and don't need to carry a backpack around to have with you. hell, you could even use a pre-made cloth banner as a scarf/wrap, and kill two birds with one stone.
just don't buy everything at once, pay for it all in cash and don't buy anything else at that store the same day. don't carry anything that could identify you, be considered an offensive weapon, or that you wouldn't want the cops to keep forever. maybe don't announce your intent to attend or take selfies, even if your face and eyes are covered
free solution, YMMV I guess, but good to have anyway: https://play.google.com/store/apps/details?id=org.servalproject&hl=en
There are some apps, such as serval mesh, that may help in situations like this, but only if people know about them in advance.
Also, there is the more decentralized Serval Mesh Net for android here: https://play.google.com/store/apps/details?id=org.servalproject&hl=en
I was thinking of something like The Serval Mesh.
https://play.google.com/store/apps/details?id=org.servalproject
There are a few others in this space too, like the serval mesh, signal offline messenger, briar project, plus some more. I hope it continues to grow! https://play.google.com/store/apps/details?id=org.servalproject&hl=en https://play.google.com/store/apps/details?id=com.raxis.signalapp&hl=en https://briarproject.org/about.html
We are based off of the same mesh networking concept as Firechat, though we are focusing on additional functionality for the way multihop can jump from device to device to cloud and back to device. Another difference is that in our road map we plan to evolve more content sharing and use capabilities than just messaging. Also, while firechat focuses on instances where network is overloaded or disrupted, we want to do more to bring connectivity to less connected parts of the world, whether it is rural America or countries with low telecom infrastructure.
I didn't say people would be mining in an apocalyptic or post-apocalyptic scenario. I didn't even remotely imply that.
I simply pointed out that it is economically possible (and potentially beneficial, assuming a certain amount of stability and the ability to communicate with others outside - this also assumes no extremes such as "not a nuclear holocaust," for obvious reasons), to actually use bitcoin (to broadcast a transaction), even without the internet. (Confirmations would likely take a very long time and you'd have to imbue the process with a certain amount of trust, but it would remain feasible, nonetheless, and certainly more feasible than actual reliance upon fiat currency.)
Anybody who knows anything about bitcoin can tell you that it is entirely possible and indeed feasible to do so.
Of course, a life-altering event involving plenty of doom would relegate most things to having much less value (or at least alter their meaning substantially) in the timeframe post-event(s). Some would say that certain "doomsday" events actually are not discrete events and occur gradually over time so that their effect(s) are not immediately detectable as something occurring within a unique or particular point in history, examples being certain types of economic catastrophes, or ELEs (extinction-level events). Anyway, my point being, if you are still alive and the internet is not available, guess what: You can still use bitcoin. In fact, people all over the globe access it now without internet, using services like Coinapult. However, let's assume that internet is down and telecommunications in general are also down (satcom, domestic / international landlines, cell service, etc). Even so, what most people forget is that nearly every cell phone today is not only NFC capable, but also functions as a radio. See, for example the Serval Project.
So yes, assuming you had enough electrical power to recharge a cell phone (e.g. a small, foldable portable solar panel, ideally, or a crank-up or pedal-powered gen that you could connect to battery) you would be able to conduct a minimal amount of trade using virtual currency even if you had no availability of cash. Initially at least people would depend on those who would be more prepared (who either had the radio equipment or who have the right software installed on their phones, e.g. mesh network install like Serval project). This was evident when I lived in El Salvador at the time when cell phones were just becoming available to the general population. Obviously nearly everyone did not have one, but there began to be a situation where there was at least one enterprising individual who had one in a village (and would hang a sign outside their door and charge people a fee to use it) even if they did not have "service" in the sense that we all tend to have it today on our cell phones. (Remember, there was no internet available at that time on the cell phone(s).)
Value of things only declines to zero if they have no utility. Venezuela comes to mind. Bitcoin use grew there (and in India) because the existing currencies declined in utility.
Cheers
So, a mesh network? I don't know much about the space, but googling turned up a few. Here's one: https://play.google.com/store/apps/details?id=org.servalproject&hl=en
https://play.google.com/store/apps/details?id=org.servalproject
Might want to check out /r/darknetplan and /r/meshnet
Some infoz...
http://www.servalproject.org/ - related https://play.google.com/store/apps/details?id=org.servalproject&hl=en The Serval Mesh
http://www.technologyreview.com/news/516571/build-your-own-internet-with-mobile-mesh-networking/
Getting Started https://wiki.projectmeshnet.org/Getting_started
You should also tell him about The Serval Mesh Net: https://play.google.com/store/apps/details?id=org.servalproject&hl=en