LoRa radios are very long-range (multiple miles/km) using small antennas and very low power. In exchange for this, they give up speed; the longest-range LoRa modes operate at only around 300bps. My lorapipe program aims to provide some nice Unixy interfaces to LoRa. See also XBee SX; those radios are similar, but offer hardware meshing and some additional nice properties. I have written quite a bit about LoRa; see my blog series about LoRa.| www.complete.org
I sometimes see people read about NNCP and wonder “This sounds great! But… what can I do with it?” This page aims to answer those questions. Either before or after reading this page, you might find these three pages useful: NNCP NNCP Concepts Getting Started with NNCP Asynchronous Communication A Quick Word on Background NNCP frees you from the tyranny of online. Compared to something like ssh, with NNCP, you trade latency for reliability and flexibility.| www.complete.org
This page is intended to describe how to run Debian’s backports on a Raspberry Pi running Raspberry Pi OS (Raspbian). This page is not relevant if you are directly running Debian on a Raspberry Pi. It is only for those running the default Raspberry Pi OS. Backports is Debian’s way of building newer packages for its stable releases. I intend this page specifically to help people run the Debian packages for NNCP and Yggdrasil, both of which are maintained by me, John Goerzen.| www.complete.org
This page gives you references to software by John Goerzen. I once tried to list every software project I made significant contributions to on this page. By January 2006, I had more than 40 items listed on this page, and it was missing quite a few. So instead of trying to provide a full list here, I will instead try to provide you with links to find my software yourself.| www.complete.org
The most widely-used form of Packet Radio, APRS lets stations transmit periodic position beacons, send messages, and other information and forms a self-organizing Mesh Network with the possibility of propagation by both radios and, less frequently, Internet. Links to this note Kansas Amateur Radio Amateur Radio in Kansas Using the Kenwood TH-D72A With PC APRS Software The TH-D72A is a very nice handheld Amateur Radio Transceiver. Among other things, it has an integrated GPS, built-in APRS fun...| www.complete.org
Probably everyone is familiar with a regular VPN. The traditional use case is to connect to a corporate or home network from a remote location, and access services as if you were there. But these days, the notion of “corporate network” and “home network” are less based around physical location. For instance, a company may have no particular office at all, may have a number of offices plus a number of people working remotely, and so forth.| www.complete.org