Houses a NodeMCU base board with CH340G chip in the bottom and a 2 channel relay in the top for use as a garage door controller using the konnected.io software. Learn more about the hardware and software at:
The NodeMCU board snaps into the bottom (put the power plug through the side first, then snap in other end). The relay is hot glued to the pegs in the top. The two parts simply slide together when done. The box is square, so the outlets can point any direction you want after printing. It leverages the fact the the parts have ridges from printing in order to stay closed. Screw mounts on the sides allow mounting near your garage door openers.
UPDATE: Added a plain top as well, in case you're only using the base and not the relay.