Hardware
The schematic looks something like this. The blocky thing on the right is an ESP8266. It has it's own power supply which I forgot to draw here.
A first test setup on a breadboard ...
... and with power supply.
And finally everything soldered together.
Glued on the bottom of a 3D printed box, ...
... made of transparent PLA.
The box put together, glowing in the dark.
And working at it's final destination.
