Can this be connected to Home Assistant? I would like to turn on and off my monitor light bar, that's powered from USB.
#Sonoff USB Adaptor
valid pine
timid tinsel
Looks like that device is supported via the SonoffLAN integration: https://github.com/AlexxIT/SonoffLAN which is available via HACS (not included with home assistant).
valid pine
How do I install/work with HACS? What even is it?
timid tinsel
HACS is a tool for installing and managing integrations which aren't included with home assistant, but are instead written by the community (and published on github). The documentation for it is here: https://hacs.xyz/docs/use/
HACS is technically not required - you can manually copy custom integrations into the home assistant config directory, custom_components subdirectory in order to use them. It's just a UI to make it easier, and notify you of updates and such.