BMI270 - Extension: Hip
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Product detailed description
➕ Cave Slimes BMI – Extension: Waist (Wi-Fi)
Already own the Cave Slimes BMI Standard core set and want an affordable way to add waist tracking to your 5-point setup? This extension pack adds one standalone wireless Wi-Fi tracker with a long elastic strap. It connects directly over your home Wi-Fi network to the SlimeVR Server, unlocking natural spine bending, crouching, and smooth hip rotation without avatar distortion.
- ✅ Affordable Budget Option: Standalone wireless unit at a great price point that easily pairs with SlimeVR Server.
- ✅ Long Waist Strap: Comfortable elastic strap with a wide adjustment range for a secure fit on the body.
- ✅ Instant Tap to Reset: Realign your tracking position in just a second by double-tapping your chest tracker.
📦 Package Contents
Compact pack with everything needed for immediate waist mounting:
- ✅ Included: 1× standalone wireless Cave Slimes BMI Wi-Fi unit.
- ✅ Included: 1× long comfortable elastic waist strap.
- ✅ Included: 1× plastic tracker holder.
- 🏷️ Integrated Labeling: Body placement is 3D printed directly on the tracker lid for instant identification.
🎯 Bosch BMI270 Sensor: What to Expect?
The tracker is powered by the proven 6-axis IMU Bosch Sensortec BMI270 sensor, featuring ultra-low power consumption and solid reliability. As a 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.
- 🔋 Energy Efficient: Low power draw preserves battery life for extended VR sessions.
- 🛠️ Dynamic Calibration: I carefully test and calibrate each tracker individually before shipping.
🎮 Compatibility & Use Cases
The waist extension integrates seamlessly alongside your existing setup in the SlimeVR ecosystem:
- 🌐 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 Add a Waist Tracker: Decouples chest motion from hips for realistic body dynamics during dancing and relaxation.
⚙️ Setup, Comfort & Maker Support
I ensure that wearing and using the waist tracker is simple and comfortable:
- 🖥️ SlimeVR Server: Adding the new tracker to your existing setup in the app takes just moments.
- 🧵 Ergonomics & Strap: The wide elastic strap holds the tracker securely without uncomfortable pinching.
- 🛠️ Maker Support: I print and assemble everything in-house. I provide direct support, repair services, and replacement parts.
❓ Frequently Asked Questions (FAQ)
With the BMI270 sensor, the typical interval for a quick reset is approximately every 15–20 minutes. Resetting takes only a second—stand straight and double-tap your chest tracker (Tap to Reset feature), or bind the reset action to a VR controller button.
The tracker operates exclusively on the 2.4 GHz Wi-Fi band (5 GHz networks are not supported). Your network name (SSID) and password must not contain special characters, spaces, diacritics, or be excessively long.
No. The SlimeVR ecosystem operates completely autonomously using internal IMU sensors. No wall mounting or external cameras are required.
📊 Technical Specifications
Tracker enclosures are 3D printed with custom color options available upon request.
| Motion Sensor | Energy-efficient 6-axis IMU Bosch Sensortec BMI270 sensor. |
| Typical Reset Interval | Approx. 15–20 minutes (quick 1-second recalibration via Tap to Reset). |
| Connectivity | Wi-Fi 2.4 GHz (2.4 GHz only, direct connection to SlimeVR Server). |
| Charging | Modern USB-C port. |
| Supported Software | SlimeVR Server, SteamVR, VRChat, Resonite, ChilloutVR, VMC. |
| Manufacturing | Custom 3D printing (color customization available on request). |
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