All prototype specs are the same as the product specs, omitting the circuit used for the prototype. I did not have facilities to manufacture a proper circuit, and therefore I used bread boards and veroboards.
Each of the components are soldered on and this produced a fully working prototype of the board. An overview can be seen in the timelapse.
Here the sensors can be seen with the RGB LED indicator. The screen is an OLED and has a quick connector so the front plate can be taken off.
The instructions for assembly are in the prototype section