I wanted to detect when my freezer door opens or closes to get more data on when the tempurature drops. This also is an attempt at trying to create an alarm if the door is not closed all the way.
Installing of MQTT broker in Home Assistant and the configuration file I use(d). Not a really big deal.
Logging and other signals with the Feather Huzzah which has the esp8266 and Home Assistant can bring more information for your metrics and signals. Follow along my insturctions for getting a tempurature sensor recording values.
Home Assistant is super easy and here are my notes and resources of what I used to create my home assistant