Helium is really a innovative wi-fi network designed on blockchain engineering. It makes use of Helium LongFi hotspots to make a reduced-run, vast-area network that connects IoT products to the world wide web more than distances of as many as 10 miles. PoC is based on the HoneyBadger BFT https://financefeeds.com/expanding-use-cases-subwallet-integrates-polkadot-bridges-and-swaps-with-easy-ux/