firmware
disaster-radio
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firmware
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Show HN: Extend Zigbee sensor range with LoRaWAN
This is a fantastic idea, thanks for sharing. I feel like LoRaWAN and LoRAMESH are the perfect solution for shuffling messaging around for home and property sensors, easily traversing a couple miles in poor conditions.
Prior to seeing this I was thinking about how to use the Meshtastic [0] project to fundamentally provide simple UDP services for message brokering over LoRa. There are so many sensors that could easily hook or connect to devices acting as network routers that could bridge other protocols across long distances very easily.
Have you looked at doing something similar with ZWave at all?
[0] https://meshtastic.org/
- Amateur Radio Fatalism
- Meshtastic: An open source, off-grid, decentralized, mesh network
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T-Mobile introduce fines from Jan 1 for "Code of Conduct" violations
Truly independent peer-to-peer internet when?
Seriously, I think more and more about building a LoRa network with friends. https://meshtastic.org/
- What Is LoRa: The Fundamentals
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FCC will vote on plan to remove outdated amateur radio technical restrictions
Agreed-- at least relaxing the restriction for UHF/SHF signals on a "secondary usage" basis (traffic must yield to plaintext). Potentially with with reduced power (say 100w) or minimum directionality, but I think a 'secondary usage' would be sufficient. Without doing so virtually all experimentation will continue to be deflected onto the ISM bands and we will lose our allocations through disuse.
So long as identification is still decodable, spectrum usage can be managed.
It's sufficient to prohibit commercial usage you don't need plaintext to do so. The old threat of tow trucks and cab services moving onto ham-bands had long since been mooted by ubiquitous cellular, but even if it weren't any significant commercial usage will eventually have a whistleblower. Usage that is obscure enough to not be vulnerable to whistleblowers could also be hidden just as well in "plaintext" traffic that was really uncrackable steganography.
As it stands you can't even lawfully log into your own personal systems over amateur radio even if you take the unreasonable steps of using specially modified software to authenticate-but-not-encrypt because inevitably some third party will send a message to you via the internet that contains some naughty words that aren't permitted over the radio.
Without relaxing the encryption rules, innovative radio usage like meshtastic (https://meshtastic.org/) will continue to be pushed onto ISM bands where (1) they're still technically unlawful because the homebrew hardware is not type-accepted (amateur bands are the ONLY place where homebrew intentional radiators are allowed!) and (2) where the band choices, power limit, and EIRP limits are detrimental to full exploration of the possibilities.
Besides, the FCC has long allowed proprietary, license fee bearing, patent encumbered digital modes. These are very close to encryption in terms of their ability to lock others out of ham comms, and have frequently been used by amateur radio groups to establish "lid free" communications channels. (Because most of the more irritating people aren't technically sophisticated enough to adopt some new mode without help, and people won't help them...).
The rules as they stand punish honest people who follow the intent and spirit of the rule in favor of people willing to just ignore the rules (including operating unlawful devices in ISM bands), willing to use stego, or willing to use obscure protocols to achieve the same ends that they'd otherwise achieve with encryption. It blocks modern networking by disallowing standard internet-grade software use with radio since all of it has integral encryption which generally can't be disabled to prevent downgrading and cross domain attacks in contexts where the encryption is needed -- or because in some cases the protocols are designed in such a way that authentication without encypherment isn't possible.
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Qaul – Internet Independent Wireless Mesh Communication App
Meh.... very very low range.
For ~$20 you can get a LoRa dongle and https://meshtastic.org/, and with some luck (someone putting a node on a hgh building or a hill), you can reach quite impressive distances.
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⟳ 0 apps added, 10 updated at apt.izzysoft.de
Meshtastic (version 30109): An inexpensive open-source GPS mesh radio for hiking, skiing, flying, marching.
- Programadores Unite!
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questions about getting into Lora?
Perhaps checkout Meshtastic, it pretty much does what you want. https://meshtastic.org/
disaster-radio
- LoRaWAN
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questions about getting into Lora?
Also, the messages will be extremely slow. On the low end, 300 baud (if you are close enough, 37kbps, but there are laws preventing full usage in some countries.). Not enough to send pictures in a reasonable amount of time. See also https://disaster.radio/
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Post collapse communications
CollapseOS and disaster.radio?
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Ask HN: What's with the DIY state of the art long-range Wi-Fi?
(btw. no affiliation here, just a happy customer)
Think about using fiber optics at least for longer fixed paths: a couple routers with SFP can provide a gigabit connection over several kilometers, and the fiber cable can be easily buried so that it's not easy to notice and doesn't hint the enemy that a transmitter is operating nearby like WiFi would certainly do.
For very slow and long distance communication, namely text messages, LoRa can be an option to which encryption can be added externally. All other considerations about radio transmission remain valid for LoRa too, however. You may find these links interesting:
https://disaster.radio/
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The new RNode is a self-replicating, open and unrestricted digital long-range radio, that can be made by anyone with a 3D-printer and a few cheap parts bought online
This is extremely cool. Reminds me of https://disaster.radio/
- Recipes For An Off-Grid 'Internet' | How to make an off-grid micro 'internet' that can run off solar power (or any power) for emergencies, camping, protests, or building community autonomy and dual power.
- FireChat Alternative?
- What to do if a nuclear disaster is imminent [pdf]
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Meshtastic / Disaster.radio / LoRa ?
Is anyone currently playing with, or is interested in creating a wireless network in the area to facilitate communication in the event of a disaster? There are these cheap, low power devices (about $20 or less) that can be programmed to communicate with others over very long distances, sending small messages, akin to SMS text message size. I was able to connect to people up to 23 miles away at my last house with this technology (via a Helium miner). The two most popular programs are Disaster.radio (https://disaster.radio/) and Meshtastic (https://meshtastic.org/). You basically put the device in an area where it has decent line-of-sight to someone else's device, and can chat to others via an Android/iPhone app that connects to the radio via bluetooth. This could be useful in general outdoor situations as well, where there is no cell phone service.
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Emergency/ Survival
Check out https://disaster.radio/. I'd consider a lot of the parts they include in their system:
What are some alternatives?
EBYTE - Libraries to program and use UART-based EBYTE wireless data transceivers
meshtastic - Meshtastic project website and documentation
ESP32-Paxcounter - Wifi & BLE driven passenger flow metering with cheap ESP32 boards
chirpstack-gateway-os - OpenWrt based gateway images including ChirpStack components.
LoRa-Stopwatch - Stopwatch with countdown for multiple devices being synchronized via LoRa
NomadNet - Communicate Freely
ClusterDuck-Protocol - Firmware for an ad-hoc mesh network of Internet-of-Things devices based on LoRa (Long Range radio) that can be deployed quickly and at low cost.
RNode_Firmware - Firmware for the RNode radio interface
ParaDrone - AutoPilot for Parachutes
collapseos - Bootstrap post-collapse technology
Beagle_SDR_GPS - KiwiSDR: BeagleBone web-accessible shortwave receiver and software-defined GPS
awesome-mesh - This is a list for mesh networking: Documentation, Free Software mesh protocols, and applications. A mesh network is a network topology in which each node relays data for the network. All mesh nodes cooperate in the distribution of data in the network.