From Wikipedia[1]:<p>Together, LoRa and LoRaWAN define a Low Power, Wide Area (LPWA) networking protocol designed to wirelessly connect battery operated devices to the internet in regional, national or global networks, and targets key Internet of things (IoT) requirements such as bi-directional communication, end-to-end security, mobility and localization services. The low power, low bit rate, and IoT use distinguish this type of network from a wireless WAN that is designed to connect users or businesses, and carry more data, using more power. The LoRaWAN data rate ranges from 0.3 kbit/s to 50 kbit/s per channel.<p>[1]: <a href="https://en.m.wikipedia.org/wiki/LoRa" rel="nofollow noreferrer">https://en.m.wikipedia.org/wiki/LoRa</a>
LoRa is fantastic for outdoor sensing applications. Shameless plug: I just released a low cost, 3D-printed, LoRa sensor platform: <a href="https://www.thingiverse.com/thing:6170483" rel="nofollow noreferrer">https://www.thingiverse.com/thing:6170483</a>
Well that’s cool! In practice, I believe there are portions of the protocol that are patented, so do some research before using this commercially.<p>That being said, LoRa is a really interesting protocol. Very adjustable to tune for a use case, somewhat novel modulation scheme. LoRaWAN on top of it is well designed. I implemented it from scratch once and was generally impressed with the design. Easy enough to implement and does a very good job and minimizing how long the radio (both Tx and Rx) need to be on.
Are there legal and plug and play LoRaWAN devices to setup a shell connection? I'm looking for simple alternatives to internet as a last resort server remote access within 10km urban area, eg between offices, to avoid physically moving to an appliance in case something breaks internet connectivity.
This code works great on a LimeSDR Mini V2. Presumably it will work well with the ANT-SDR as well which makes me think I should get out my ADALM-PLUTO and try it there as well.<p>While vendors often hide their radio stack in encrypted binary blobs that you load into the "radio half" of their chips having a stack like this where you can look at the parts of the signal is really useful for debugging your own stack. Ideally this will result in opensource implementations of LoRa for things like the STM32W series chips.
Hurricanes are a problem here in Florida and communication can be though during the outage or hours after. My neighbors and I use a specific channel with cheap BaoFengs to check on each other and make sure we are all stocked, but it would be nice to have the ability to text within a group chat (not everyone understands radios, unfortunately).<p>How can I setup a local area network over radio? I've tried transferring data over the BaoFengs with adapters and a custom app, but it was very slow.