Can I connect many SX1272 (LoRa) based devices to a gateway?
LoRa contains only the link layer protocol and is perfect to be used
in P2P communications between nodes. LoRa modules are a little
cheaper that the LoRaWAN ones. It works in the 868 and 900MHz bands.
LoRaWAN includes the network layer too so it is possible to send the
information to any Base Station already connected to a Cloud
platform. LoRaWAN modules may work in the 868/900/433MHz bands.