Ultra compact MAX7219 housing for ATTiny85/Arduino

Small housing designed to fit a MAX7219 LED matrix, along with a voltage regulator to step down from any voltage to 5v, and an Arduino Pro Mini or ATTiny85. Any other microcontrollers with similar footprints will also fit. Thought initially for a friction fit, it can also be mounted with glue, and the dual width is also thought to give ever so slightly more space in the back for electronics, while making the front small enough to poke through a hole. However, can generally be pressed deep enough for a flush mount, but I can make the rear housing thicker to ensure it actually fits flush if needed.