In this article I’d like to tell the story of building the lighting timer for my small 120 liter aquarium. Just when they said lights should go up and down on schedule I knew it it’s not going to happen in my house. Just won’t work that way. So I decided to automate it.
I found it super-hard to find meaningful info on how to link a tiny little ESP8266 (ESP-01 in my case) to an Arduino and talk to it.