This guide covers everything you need - from wiring and 3D printing to assembly and programming ... wire, power connectors, slide switch, buzzer, LEDs, surface mount components for controlling ...

My Idea came from this Video (2:47), when a guy presented this. I don't know who this is, but he's a hero. Well, because I am a foolish at IoT, I'll try (as first step) to let the light switch off ...