Dobrica Pavlinušić's random unstructured stuff
Zengge: Revision 4
https://www.home-assistant.io/integrations/zengge/ -- doesn't work
https://github.com/home-assistant/core/issues/124083 -- LEDnetWF BLE seems to work
https://play.google.com/store/apps/details?id=com.zengge.blev2
08:65:F0:62:19:5c
