BMI270 - AUX Extension: Hip

➕ Cave Slimes BMI – AUX Extension: Waist

Want to add waist and hip tracking at the lowest possible cost? This AUX extension is a lightweight sensor module equipped with an energy-efficient Bosch BMI270 sensor that connects via cable to your existing Cave Slimes main unit (e.g., on your chest). You get smooth tracking of your core, natural sitting posture, and spine bending without needing to buy and charge another wireless tracker.

• ✅ Maximum Cost-Effectiveness: Leverages the battery and Wi-Fi transmission of your existing main unit to radically lower the purchase price.
• ✅ Long Waist Strap: Comfortable elastic strap with a wide adjustment range for a secure fit around the waist.
• ✅ Fluid Torso Tracking: Prevents unnatural avatar deformation during sitting, crouching, and dancing in VR.

📦 Package Contents

The package includes everything required for easy wired connection to your main unit:

• ✅ Included: 1× wired AUX module featuring a Bosch BMI270 sensor.
• ✅ Included: 1× connecting cable for attachment to the main unit.
• ✅ Included: 1× long adjustable elastic waist strap.
• ✅ Included: 1× plastic tracker holder.
• 🏷️ Integrated Labeling: Body placement is 3D printed directly on the lid for immediate orientation.

🎯 Bosch BMI270 Sensor: What to Expect?

This AUX module houses a 6-axis IMU Bosch Sensortec BMI270 sensor, offering reliable stability for casual use. As an entry-level budget sensor, expect a recalibration (reset) interval of approximately every 15 to 20 minutes.

• ⚡ One-Second Reset: Recalibrate instantly in-game via Tap to Reset or by binding a controller button.
• 🛠️ Quick Calibration: Calibrating the AUX module takes only a few seconds inside the SlimeVR Server application.
• 🔌 Ultra-Lightweight: Without a battery and Wi-Fi chip, the module is extremely light and unobtrusive on the body.

🎮 Compatibility & Use Cases

The AUX extension connects directly to the open AUX port of a compatible Cave Slimes main unit across all VR applications:

• 🌐 Apps & Games: VRChat, Resonite, ChilloutVR, Dance Dash, NeosVR, Virtual Motion Capture (VMC), and VTubing software.
• 🥽 Supported Headsets: Meta Quest 2 / 3 / Pro, Pico 4, Valve Index, HTC Vive, and other VR headsets (via SteamVR, Virtual Desktop, or Link).
• 💃 Why Choose AUX Waist: Most economical upgrade to achieve authentic hip movement without buying an extra wireless tracker.

⚙️ Setup, Comfort & Maker Support

I ensure that wearing and connecting the AUX module is simple and hassle-free:

• 🖥️ SlimeVR Server: In the app, simply assign the AUX sensor to the corresponding main unit.
• 🧵 Ergonomics & Flexibility: The flexible connecting cable does not hinder body movement, and the strap holds firmly in place.
• 🛠️ Maker Support: I print and assemble everything in-house. I provide direct support, repair services, and spare parts.

❓ Frequently Asked Questions (FAQ)

📊 Technical Specifications

Compact extension module produced via precision 3D printing to expand your existing Cave Slimes setup.