gloomy wind
I've made a DIN rain mountable central heating unit actuator (turns heating on/off) and controls "boost" mode by raising the temperature curve of a 3-way mixing valve, with 2xDS18B20 temperature sensor on forward and return paths to monitor temperature difference. https://imgur.com/a/gG8ml42
jovial cypress
Where did you get the DIN case? Looks pretty slick.
I assume the lights are just like power/boost?