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WIP new parts list. 3D printed parts will live on their own page.

Use the interactive tables below to select parts!

Required Parts:

ComponentChoiceAmountCostCost AllLinks
ESP Microcontroller2$12.87~$28.92AliExpress XIAO Sense Recommended
Camera2$5.41~$10.82AliExpress Select "Color: 75MM-130 Degree" Must manually remove IR filter
IR LEDs1$24.00~$29.00ETVR Store Must solder up your own wires
USB Hub1$17.99~$19.99Amazon Usually these are MTT, but sometimes not
3D Printed Mounts000

Total: $0.00

Additional Parts:

ComponentChoiceAmountCostCost AllLinks
Type A USB Breakout000
USB-C Breakout000
Wire for ESPs000
Wire for LEDs000
Camera Extension Cables000
Camera Extension Connectors000
External Antennas000
USB-C Cables000
V4 LED Wire Extensions/Replacements000

Total: $0.00

Table adjusted from the table on SlimeVR's Docs which was created by Carl

ESP setup options:


There are two primary categories of trackers supported: wireless and wired. It's super important that you really look at all your options and consider your use case before making a decision.

Option 1: Wireless over WiFi 2.4 GHz

Wireless Capable ESPs:

  • Seeed Studio XIAO Sense
  • ESP32-CAM

This offers a good starting point as the ESP32 CAM boards are cheaper than wired capable trackers. However, they can be a bit more temperamental and if you are using a wired headset, they don't really make sense.


  • Not as experimental
  • Less cables (power only)
  • No issues with USB hubs


  • Requires two external antennas for optimal streaming quality
  • Requires WiFi 2.4 GHz router or access point in reasonable proximity
  • High risk of radio interference with FBT and other WiFi 2.4 GHz devices
  • ESP32-CAM uses more power and heats up due to radio power needs

Option 2: Wired over USB Serial (in beta)

Wired Capable ESPs:

  • Seeed Studio XIAO Sense

This is our latest setup recommended for users with wired headsets such as the Valve Index.


  • Much better performance and higher framerate up to 70 FPS with lower latency
  • No conflicts with advanced FBT setups such as Vive or Tundra Trackers
  • Can be wireless or wired
  • Less soldering required


  • Requires USB port i.e. on Valve Index and USB hub mounted on your headset
  • Can be slightly more costly
  • When in use with a Vive Facial Tracker, an MTT USB hub is required

Released under the MIT License.