Helium is a blockchain-based network that connects Internet of Things (IoT) devices. While the system delivers data over network nodes, helium technology allows communication between devices. Hotspots are the network nodes in the Helium system. LoRaWAN is used by the Hotspots to provide public network coverage. Platforms such as Helium may use LoRaWAN, a media access control layer protocol with a cloud component.
With approximately 25,000 Hotspots, Helium is among the largest LoRaWAN networks. LoRaWAN hotspots combine the power of blockchain mining with the strength of LoRaWAN.

By tackling all problems and unsatisfactory solutions, Helium, also known as "The People's Network," aims to create an efficient and effective Internet of Things for the future. The privacy of prominent Internet of Things hubs like Google and Amazon is one of the most serious concerns in the IoT industry. Thanks to decentralization and the blockchain technology used to construct Helium, privacy will no longer be an issue when linking devices to the Internet of Things.
https://www.helium.com