My adventures into mesh networking: MeshCore 101
I’ve been interested in mesh networking for over a year now after a discussion about it on my club’s weekly TechNet piqued my interest. After doing some research into the various standards, I decided to check out LoRa-based mesh networks. Before I jump into that I’ll write up a quick overview of these networks and how they work. The primary idea behind these mesh networks is to provide a way for people to communicate via inexpensive devices that use unlicensed UHF frequencies in various regions around the world. They leverage the LoRa (short for “Long Range”) protocol and hardware. LoRa dates back to 2010, when it was developed as a proprietary physical layer communication technique based on Chirp Spread Spectrum (CSS) technology. LoRa encodes data using FM sinusoidal chirps that provides high resistance to noise and multi-path interference and uses very low amounts of power. It operates in license-free ISM bands (915 MHz in North America, 868 MHz in Europe). 2019: The Mesht...
