SteamVR Tracking > Shoto HDK

Shoto SteamVR Tracking HDK

The SteamVR HDK is a kit of components that can be used to quickly prototype and evaluate custom SteamVR Tracked objects. The HDK is a modular design that can evolve with your product development.

The Shoto SteamVR Tracking HDK contains Triad’s TS4231 2nd Generation Light-to-Digital receivers and is backwards and forward compatible with Generation 1 and Generation 2 Lighthouse solutions.

Each Kit Contains:

  • One Watchman Complete Core Module
  • Two 13 Sensor Flexes
  • One Steam Wireless Dongle
  • One 2.4 GHz Antenna with u.FL Cable

Shoto Watchman Complete Core Module

The new Shoto Watchman Complete Core Module shrinks the original three board SteamVR Tracking HDK into a single board. The Shoto HDK dimensions are: 14.5mm wide by 43mm long by 8.07mm high. The functions on the Shoto Watchman Complete Core Module include:

  • Lattice ICE40HX8K-CB132 FPGA
  • Atmel ATSAMG55J19A-MU ARM Cortex M4 Processor
  • Nordic nRF52832-QFAA 2.4GHz Radio SoC with Cortex M4 Processor

Additional features include:

  • InvenSense MPU-6500 Accelerometer and Gyroscope
  • Precise 48MHz MEMs Oscillator
  • 600mA High Efficiency Power Management
  • Reset Circuitry
  • Low Power Shutdown Controller
  • Lithium Ion Battery Charger/Power management
  • Advanced Lithium Ion Battery Gas Gauging

Shoto 13-Sensor Flex

The Shoto Watchman Complete Core Module has two high density connectors that allow for attaching two 13-sensor flexible printed circuits (FPCs). Each 13-Sensor Flex contains 13 distributed Light-to-Digital receivers. Each Shoto HDK comes with two 13-sensor flexes supporting a total of 26 sensor locations.

Each sensor location contains:

  • Photodiode
  • Triad TS4231 2nd generation Light-to-Digital Converter IC
  • Bias Resistor
  • Decoupling Capacitors