Minecraft CO2 Detector

I mixed up several things to create a Minecraft styled CO2 (carbon dioxide) detector. The portal matrix LED shows the air quality and reminds to open the window.

The thing is based on these things:
Minecraft Grass Box https://www.thingiverse.com/thing:4541840
Minecraft Steve https://www.thingiverse.com/thing:493722
Minecraft Chicken https://www.thingiverse.com/thing:38021
Minecraft Chest https://www.thingiverse.com/thing:255894
Minecraft Portal Necklace https://www.thingiverse.com/thing:313992

All things instead of the portal where used as is and just scaled in Cura. The box was flattened to 7cm and the gadgets like steve or the chicken where scaled by 50% on demand in Cura. The chest was scaled to fit to the detector.

Only the portal was overworked so I could put a LED Matrix in the center. The portal is splitted in two files and attached here. So you could easily adjust it to your needs or glue it together as I did. Please do a draft print before, depending on the matri