The case that holds the brains of this project. There are two holes in the bottom to fine tune the height of the divider plate, as well as push a screw through in case the fit is a bit too snug to pull the divider out. Fit one nut in the nut recess inside the box if you want to be able to fine tune the divider height with an m3 screw. The clip on the outside affixes it to a belt or strap so you can yeet it if your jank soldering causes an issue before the control box becomes a part of your flesh.