Re:IoT Unravelled Part 1: It's a Mess but Then There's Home ...
by lostlogin on Monday November 23, 2020 @08:25AM
(#25186485)
This, so very much. That project is amazing. It feels very close to the metal and is very satisfying to do, whilst also being pretty straight-forward for a beginner.
And you can go completely custom using the Arduino IDE and anything compatible (Arduino boards and ESP32 or ESP8266s) and link them in to HA via MQTT, which works surprisingly well.
[0]: https://esphome.io