--Got basic rotary_encoder.ko module compiled on rover.
--Took rover down to machine shop for mic and speaker mounting.  Mic is mounted on rear left corner of rover, next to battery and DC-DC converter.  Speakers are mounted underneath, between front and middle wheels, angled outwards towards side of rover (angle is changeable due to hinges on back of speakers).
--Started reading up on Teensy (Arduino) development environment.