Multi-functional keyboard assemblies

A key mechanism, comprising:

• a frame;
• a keycap;
• a support mechanism configured to stabilize vertical movement of the keycap relative to the frame;
• a dome positioned between the keycap and the frame;
• and
• a sensor membrane layer positioned between the dome and the keycap, the sensor membrane layer configured to move with the keycap relative to the frame and to detect a change in position of the dome relative to the frame.

A keyboard input assembly, comprising:

• a base layer;
• a processor;
• a set of keys, wherein each key of the set of keys comprises:
• a keycap;
• a support mechanism positioned between the keycap and the base;
• a collapsible switch having a dome portion positioned between the keycap and the base, wherein the dome portion comprises a convex outer surface facing the base layer;
• and
• wherein the collapsible switches of the set of keys are in electrical communication with the processor.