Posts on the Alpisto engineering blog filed under #fanet-vario.
The FlyBeeper FANET Vario is a wireless, solar-powered FANET beacon and barometric variometer in one. No GPS inside — it reuses your phone's, works as a plain radio driven by the app, and puts you on the map for nearby pilots. Full app, BLE protocol and specs. A quiet pre-order at €149 with free shipping.