This tiny 21‑dollar board lets you build a LoRa network without Wi‑Fi or mains power

[Redaktion]

A new system supports operation with a wide range of sensors and actuators and can also run completely independently of conventional network connections and the power grid.

https://www.notebookcheck.net/This-tiny-21-dollar-board-lets-you-build-a-LoRa-network-without-Wi-Fi-or-mains-power.1277813.0.html