The v0.2 design is based on the answer to Q4 of the Initial Questions. The Fritzing drawing shown below covers the prototype design. The remainder of this document covers the design decisions by addressing each of the requirements.
To meet this requirement, the v0.2 holoseat controller replaces the Arduino Uno + USB Keyboard Controller from v0.1 with an Arduino Leonardo. The Leonardo has built-in keyboard emulation
The sensing remains implemented using a reed switch. For v0.2, the reed switch used will be a Radioshack 55050593 as with the Arduino Bike Spedometer