Split flap display module

A split flap display using a Wemos D1 R1 and a ULN2003 driver board with the 28byj-48 stepper motors. The original design was from Jonas Bonjeanand I've reworked the files to create this one. The main changes were as follows. Additions to the motor mount to be able to fit the electronics on board , changed the drum internals to fit the shaft along with the placement of a 2mm bolt which secures the flaps onto the drum without having to glue the end cap in place. I also mirrored and changed the dr