Some relays and transistors were ordered, for controlling the solenoids, and supplying appropriate power to the sensors.
The embedded software for reading values from the sensors, as well as pairing the GnoMini to the GnoMom is complete. The GnoMini (Arduino) also broadcasts its read sensor values.
The mechanical aspect included more CAD work and prototyping.
The following images show the top of the GnoMini, as well as a CAD of the side panel.