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Offline networking: Difference between revisions
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Added info and link to Liam Cottle's Meshtastic map
(Updated info about Meshtastic, with image of Station G2 device) |
(Added info and link to Liam Cottle's Meshtastic map) |
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LoRa (from 'long range') is a communication protocol that allows for the transmitting and receiving of data in license-free portions of the radio spectrum. Together with LoRaWAN, it represents is an interesting low cost, low power, wide area networking platform, that can be used to create robust mesh networks. Mobility, end-to-end security and location are all features implemented by the LoRa architecture. While the data rate of LoRa is significantly smaller than that of [[Cellular communications|cellular]] or wireless networks, operating from 0.3 kbit/s to 50 kbit/s per channel, it is sufficient for a diverse applications such as the sending of location information, messages and chat, status updates, sensor output, etc. The longest 2-way conversation between LoRa devices using less than 1 Watt of power is 206 km (128 miles)<ref>https://hackaday.com/2023/06/26/meshtastic-for-the-greater-good/</ref>. | LoRa (from 'long range') is a communication protocol that allows for the transmitting and receiving of data in license-free portions of the radio spectrum. Together with LoRaWAN, it represents is an interesting low cost, low power, wide area networking platform, that can be used to create robust mesh networks. Mobility, end-to-end security and location are all features implemented by the LoRa architecture. While the data rate of LoRa is significantly smaller than that of [[Cellular communications|cellular]] or wireless networks, operating from 0.3 kbit/s to 50 kbit/s per channel, it is sufficient for a diverse applications such as the sending of location information, messages and chat, status updates, sensor output, etc. The longest 2-way conversation between LoRa devices using less than 1 Watt of power is 206 km (128 miles)<ref>https://hackaday.com/2023/06/26/meshtastic-for-the-greater-good/</ref>. | ||
One practical mobile application of LoRa is MsgLab, where it is employed as a small handset with keyboard and case such that it can be used for texting in off-grid contexts<ref>https://www.msglab.co/</ref>. The Meshtastic project is another, with a large global community of user-operated mesh nodes. This off-the-shelf solution provides a modular platform whereby LoRa hardware, battery, and case and antenna are purchased, a web-based flasher is used to deploy the software onto the hardware. Various interfaces to the hardware (including apps and web-based) are provided. Meshtastic can be a good solution for resilient communications for those less technical, allowing messages to be sent from a paired smartphone over bluetooth to the device, the messages of which are in turn either broadcast to a public channel on the mesh, or to a user-configured encrypted channel of devices on the mesh (for instance to devices of friends and family in the region).<ref>https://meshtastic.org/</ref>. A global map of Meshtastic nodes can be seen [https://meshtastic.liamcottle.net/ here]. | |||
<ref>https://meshtastic.org/</ref>. | |||
== Linkdump == | == Linkdump == | ||