GadgetGuru: Pro tip: the Home Assistant add-on repository has powerful automation examples — saved me so much debugging.

41 minutes ago · profile

I've been running this for a few months and it's been pretty solid. The notifications work well once you configure correctly.

See also

• The best way to set up battery-powered relays?
• Stupid question: is MQTT the same as HTTP?
• What monitoring devices are worth for a smart home?