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Conn3D (Connection-3D)

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An immersive, mobile‑first Augmented Reality (AR) virtual electronics lab designed to bridge the gap between theoretical knowledge and practical engineering education.

Next.js React Tailwind Status Node License PRs

Project status: Early content and architectural scaffold. Core AR & simulation layers implemented.


Table of Contents

  1. Overview
  2. Vision
  3. Core Principles
  4. Features
  5. Services Offered
  6. Technology Stack
  7. Architecture & Structure
  8. UI Components
  9. Getting Started
  10. Available Scripts
  11. Deployment
  12. Roadmap
  13. Accessibility
  14. Performance Strategy
  15. Contribution Guide
  16. FAQs
  17. License
  18. Acknowledgements

1. Overview

Conn3D delivers a fully interactive virtual electronics laboratory accessible from any modern mobile device. It harnesses AR to let learners place and manipulate circuit components in real-world space, encouraging spatial reasoning, safe experimentation and intuitive understanding of hardware fundamentals.

2. Vision

To revolutionize technical education globally by providing every aspiring engineer with equitable access to a hands-on, high-fidelity electronics workspace—regardless of location or financial constraints.

3. Core Principles

  • Interactive: Learning through tangible manipulation and immediate feedback.
  • Intuitive: Natural gestures and visual clarity reduce cognitive friction.
  • Accessible: Mobile-first experience lowers hardware and cost barriers.

4. Features (Current / In Progress)

AreaDescriptionStatusNext Step
Landing NarrativeHero + structured educational sectionsImplementedRefine copy & accessibility review
Component ArchitectureModular React components (App Router)ImplementedAdd test coverage
Styling SystemTailwind CSS utility-firstImplementedEstablish design tokens
AR Preview LayerPlaceholder conceptual contentPendingEvaluate WebXR vs Native
Simulation EngineReal-time circuit feedbackPlannedDraft data model & solver
Cloud PersistenceProfiles, saved circuitsPlannedDefine schema

5. Services Offered (Concept Scope)

Service Description
Mobile AR App Transforms any flat surface into an interactive electronics bench.
Real-Time Simulation Immediate circuit feedback via a custom simulation layer (planned).
Virtual Component Library Expanding catalog of 3D electronic parts.
Safe Workspace Risk-free experimentation without physical damage or hazards.

6. Technology Stack

Layer Choice Rationale
Framework Next.js 15 (App Router) File-based routing, streaming, server components
Runtime React 19 Concurrent features, future-proof for interactive AR panels
Styling Tailwind CSS 4 Rapid iteration, consistent spacing/typography scale
UI Elements Headless UI, Heroicons Accessible primitives without opinionated styling
Fonts Geist (next/font) Automatic optimization & variable font control
Planned AR ARCore / ARKit / WebXR bridge Device-native tracking & portability
Simulation Engine Custom lightweight solver Fine-grained control over performance & accuracy
Backend (Future) Firebase / AWS Realtime sync, auth, scalable storage
Analytics (Future) PostHog / Plausible Privacy-friendly usage insights

7. Architecture & Structure

src/
	app/
		layout.js        # Root layout, font setup, metadata
		page.js          # Landing page composition
		hero.jsx         # Conn3D overview & sectional narrative
		feature.jsx      # Highlighted feature blocks
		cta.jsx          # Call-to-action section
		banner.jsx       # Top banner (announcements / messaging)
		navbar.jsx       # Navigation shell (future expansion)
		stats.jsx        # Placeholder for metrics / impact highlights
		team.jsx         # Team introduction
		faq.jsx          # Frequently asked questions section
		footer.jsx       # Footer / links
		globals.css      # Tailwind base + project-level styles

Separation of concerns: each semantic content block lives in an isolated component, enabling future progressive enhancement (e.g., hydration boundaries, streamed sections, dynamic AR previews, or lazy-loaded simulation widgets).

8. UI Components (High-Level Responsibilities)

  • Hero: Narrative core (About, Vision, Services, Technology, Impact, Outlook).
  • Feature: Space for showcasing differentiated capabilities.
  • CTA: Drives user engagement (signup / waitlist / demo scheduling).
  • Faq: Structured Q&A to reduce friction.
  • Team: Human credibility layer.
  • Stats: Designed for future adoption metrics, learning outcomes or performance indicators.

9. Getting Started (Local Development)

Prerequisites:

  • Node.js 18+ (verify with node -v)
  • Git
  • A package manager (npm included by default)

Clone & install:

git clone https://github.com/RJohnPaul/Conn3D.git .
npm install

Development server:

npm run dev

Visit: http://localhost:3000

Production build preview:

npm run build
npm start

Directory Conventions

  • Use the app/ directory for route-based composition (Next.js App Router).
  • Co-locate component-level styles or keep to utility-first Tailwind classes.
  • Go to the AR Assets folder to gain intel on the AR Codebase

10. Available Scripts

Script Purpose
npm run dev Start local development server with hot reload.
npm run build Create an optimized production build.
npm run start Run the production build locally.

11. Deployment

Recommended: Vercel (first-class support for Next.js).
Basic flow:

  1. Push to main or open a pull request.
  2. Vercel detects framework and builds automatically.
  3. Inspect preview deployment.
  4. Merge to production branch for live release.

Environment variables (future): simulation backends, feature flags, analytics keys. None currently required.

12. Roadmap (Planned Enhancements)

Phase Milestones Deliverables Exit Criteria
1 Foundation Accessible landing, component audit, metrics baseline CLS < 0.1, Lighthouse A11y > 95
2 AR Prototype Basic placement of 3D components (stub interactions) Stable 30+ FPS on mid-tier device
3 Simulation MVP Ohmic + reactive elements, live value overlays < 10ms step calc for small circuits
4 Persistence & Collab Auth, save/load, share links Multi-user edit latency < 300ms
5 Intelligent Tutor Contextual hints, adaptive challenges 75%+ task success in user tests
6 Advanced Components MCUs, sensors, renewable modules Verified component test suite

AR & Simulation Conceptual Layers

  1. Scene Management (entity/component registry)
  2. Tracking & Spatial Anchors (ARCore/ARKit abstraction)
  3. Physics/Electrical Solver (incremental time steps)
  4. Interaction Layer (gesture → semantic intent)
  5. Visualization (probes, overlays, waveform inspectors)
  6. Persistence Sync (CRDT or operational transforms)

Data Model Draft (Planned)

Circuit {
	id: string;
	components: ComponentInstance[]; // typed refs
	nets: Net[];                     // connectivity graph
	metadata: { title?: string; version: number; createdAt: ISODate };
}

This model will evolve once simulation constraints and collaborative editing semantics are formalized.

Accessibility Checklist

Area Status Notes
Semantic Headings In Progress Ensure single H1, descending order
Color Contrast Pending Review Add token palette & test contrasts
Focus States Basic Need visible outline normalization
Aria Labels Pending Add to interactive navigation elements
Reduced Motion Not Implemented Add prefers-reduced-motion handling

Performance Strategy

Layer Intent
Code Splitting Use dynamic import for heavy AR bundles
Streaming Leverage React Server Components where static narrative suffices
Asset Policy Prefer responsive images / vector icons (no raster for simple shapes)
CSS Tailwind JIT purging for minimal bundle
Simulation Web Worker / WASM exploration for isolation
Caching HTTP caching for static assets; future SW for offline library

Planned metrics: First Contentful Paint, Time to Interactive, Simulation Step Latency.

13. Contributing

Contributions are welcome.

Workflow:

  1. Fork repository
  2. Branch naming: feat/, fix/, chore/, docs/
  3. Commit convention (Conventional Commits): feat(hero): add AR roadmap section
  4. Ensure build succeeds: npm run build
  5. Open PR with: context, before/after (screenshots if UI), test notes

Coding Guidelines:

  • Keep components cohesive; extract only after 2–3 repetitions.
  • Prefer composition over inheritance.
  • Enforce accessible markup (run automated Lighthouse / axe).
  • Avoid global state until justified; lean on props & server components.
  • Document non-trivial decisions in a short DECISIONS.md (future).

Security & Privacy (Future Phases):

  • Principle of least privilege for backend services.
  • Input validation on circuit definitions.
  • Opt-in analytics with anonymization.

14. FAQs (Sample)

Question Answer
Will a native mobile version exist? Planned—initial AR experiments will determine delivery path (WebXR vs native wrapper).
How are circuits simulated? A custom lightweight engine (in design) will model basic electrical behavior with real-time feedback.
Will advanced components (MCUs, sensors) be included? Yes—phase expansion includes microcontrollers, renewable energy modules and more.
Is offline use supported? Intended in future builds with local caching for component libraries.

For questions or collaboration inquiries, open an issue or start a discussion thread.

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