Wiring and sealing the headband was both tedious and very rewarding. The only actuators are the sixteen vibrating motors spaced throughout the headband, but to wire them carefully and compactly to the controller was no easy task. The skinny, fragile little wires of the ribbon cable had to be soldered to the even more frail motor power wires. Every connection was treated with heat shrink insulation. At the end of the ribbon cable, JST crimps and sockets were attached to the the wires. The ground wires of every motor were daisy chained all the way to the edge where one common ground header would come out.

In addition to all the motors and wires, I sealed a thin acrylic panel in between the two layers. This panel matched the footprint of the Feather exactly, and the microcontroller could be screwed on to the headband with no problem.