Xiaobu 小步

A quiet social coach for your Even Realities G2 smart glasses.

Xiaobu listens to your conversations and suggests short, natural responses — displayed discreetly on your glasses when you need them. Built for people with social anxiety who want a silent nudge, not a script.

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How It Works

1. 🎤 The app listens to the conversation around you via your microphone
2. 💍 When you feel stuck, tap the temple of your glasses (or the ring)
3. 🧠 AI generates one short, natural response based on what was just said
4. 👓 The suggestion appears on your glasses display instantly
5. 🔄 Tap again anytime for a fresh suggestion

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Tech Stack

Layer	Technology
Glasses display	Even Hub SDK (@evenrealities/even_hub_sdk)
Speech-to-text	OpenAI Whisper (whisper-1)
Response generation	OpenAI GPT-4o
Dev server	Vite
Simulator	Even Hub Simulator

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Getting Started

Prerequisites

• Node.js v20 or v22+
• An OpenAI API key (sk-...)
• Even Hub Simulator installed

Installation

# Clone or download the project
cd xiaobu

# Install dependencies
npm install

# Install Vite if not already set up
npm install -D vite
npm pkg set scripts.dev="vite"

Configuration

Open index.js and replace the API key placeholder on line 9:

const OPENAI_API_KEY = 'sk-your-key-here';

Running

Open two PowerShell terminals:

Terminal 1 — Start the dev server:

npm run dev

Terminal 2 — Start the simulator:

evenhub-simulator http://localhost:5173

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Usage

• Browser panel — shows the debug UI: bridge status, live transcript, last suggestion, and debug log
• Glasses display — shows the suggestion text (green dot-matrix)
• Click button (simulator) or temple tap (real glasses) → request a suggestion
• The mic transcribes continuously in 4-second chunks, keeping the last 30 seconds of context

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Project Structure

xiaobu/
├── index.html        # Browser panel UI
├── index.js          # App logic (SDK, Whisper, GPT-4o)
├── package.json
└── README.md

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Roadmap

• Heart rate integration via Even R1 ring (when SDK exposes biometric data)
• Automatic suggestions without tap (opt-in mode)
• Multi-language support
• Customizable suggestion tone (formal / casual / funny)

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Notes

• The glasses display is 576×288px, green dot-matrix — keep suggestions short (under 12 words)
• Tested in Even Hub Simulator v0.7.2 with SDK v0.0.10
• No camera is used — privacy-first by design

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*Xiaobu (小步) means "small step" in Chinese, because every interaction starts with a small step.

And because I personally like (and learn) Mandarin *