V1

Mechanical prototype mostly complete —> missing motor & motor driver

Despite this, we can use the headset for software dev

Goals

MUST HAVE:

Homegrown unity app demo that can run on the headset and demonstrate the benefits of varifocal, something like an archery range and reading a newspaper

PREFERRED:

hand tracking

Software Major Categories:

• eye tracking (link)
  • Is eyetrackvr’s latency acceptable?
  • homegrown wired solution using existing esp32-s3 & cameras?
• SLAM & hand tracking (borrowing Project Northstar [link] camera modules)
  • Be able to build our own unity demo on top of the northstar project
    • use their gesture stuff
    • use their SLAM
• software drivers for moving the motors
  • as an example: unity app —> arduino —> pwm class d amp —> VCM
  • establish bridge between microcontroller and Unity (…)
  • arduino, motor driver, and sensor (possibly hall effect) communication (hopefully just pwm output and PID and sensor input)
• (paused) displays (ex. distortion correction) - can’t work on this right now since we don’t know which displays V2 will go with
  • other interesting open source vr projects to reference: relativty, osvr

V2

Hardware Major Tasks:

• CAD new ideas:
  • vase mode flextures
  • “off axis” VCM placement
  • flextures for stability only (not push pull configuration)
  • flex pcb integration
  • identify possible rigidity & precision issues
  • hall effect sensor placement
• PCB and Electrical:
  • voice coil motor driver (class d amp or opamp?)
  • go with arduino for motor control?
  • flex pcb integration
  • hall effect sensor board/controller?
  • finalize display & display driver selection
  • usb hub/usb pd?
    • USB connection to computer:
      • leap motion
      • intel t261 (or even possibly vitracker integration?)
      • 2x etvr esp32 s3
    • 5v power:
      • etvr IR led
      • arduino for motor driver/amplifier

    • 5v power:

      • displays?
      • motor driver
• Optics
  • are we using new lenses
    • are they going to be fresnel or pancake
    • how big
    • focal length
    • shape
• Procurement
  • voice coil motors
  • voice coil motor driver/amplifier
  • hall effect sensor