LoRa

LoRa (from "long range") is a physical proprietary radio communication technique based on spread spectrum modulation. LoRa can be thought of as a radio signal technology, similar to Wi-Fi or cellular. The technology is primarily used for applications where small amounts of data need to be transmitted infrequently from hard-to-reach locations. LoRa uses license-free sub-gigahertz radio frequency bands EU433 (433.050-434.790 MHz) or EU868 (863–870/873 MHz) in Europe; AU915/AS923-1 (915–928 MHz) in South America; US915 (902–928 MHz) in North America; IN865 (865–867 MHz) in India; and AS923 (915–928 MHz) in Asia; LoRa enables long-range transmissions with low power consumption. The technology covers the physical layer, while other technologies and protocols such as LoRaWAN cover the upper layers. It can achieve data rates between 0.3 kbit/s and 27 kbit/s, depending upon the spreading factor.