giglez/docs/PROJECT_STATUS.md

GigLez Project Status

Date: 2025-01-11 Phase: Foundation & Planning Status: Architecture Complete, Ready for Implementation

Completed Tasks

1. Research & Documentation

• ✅ Researched Flipper Zero Sub-GHz database structure
• ✅ Documented RTL_433 protocol database (200+ protocols)
• ✅ Analyzed Universal Radio Hacker signal formats
• ✅ Identified key signature sources and file formats

2. Project Architecture

• ✅ Created comprehensive CLAUDE.md with primary directives
• ✅ Designed modular directory structure
• ✅ Established clear separation of concerns (capture/gps/database/matcher/api/web)

3. Database Design

• ✅ Complete PostgreSQL schema with 9+ tables
• ✅ Geospatial indexing for location queries
• ✅ Signature matching tables (Flipper, RTL_433, community)
• ✅ User authentication and community voting system
• ✅ Materialized views for performance optimization
• ✅ Trigger functions for automatic statistics updates

4. Signature Database Integration

• ✅ Documented Flipper Zero .sub file format parsing
• ✅ RTL_433 JSON output field mapping
• ✅ Import pipeline design for all signature sources
• ✅ Signature matching algorithm specification
• ✅ Community contribution workflow

5. Hardware Integration

• ✅ T-Embed communication protocol design (JSON over serial)
• ✅ Command reference (SCAN, CAPTURE, STATUS, etc.)
• ✅ Event notification system
• ✅ Python controller implementation (sync & async)
• ✅ GPS coordination strategy

6. Development Infrastructure

• ✅ requirements.txt with all dependencies
• ✅ .gitignore configured for Python/data files
• ✅ Initial Python module structure
• ✅ T-Embed controller classes (sync/async)

Current Project Structure

giglez/
├── CLAUDE.md                    # Primary project directives
├── README.md                    # User-facing documentation
├── PROJECT_STATUS.md           # This file
├── requirements.txt            # Python dependencies
├── .gitignore                  # Git exclusions
│
├── docs/                       # Technical documentation
│   ├── database_schema.md      # Complete DB schema
│   ├── signature_databases.md  # Signature import guide
│   └── tembed_setup.md        # Hardware setup & protocol
│
├── src/                        # Source code
│   ├── __init__.py
│   ├── capture/               # T-Embed communication
│   │   ├── __init__.py
│   │   ├── tembed.py         # Controller implementation
│   │   └── scanner.py        # (TODO) Signal scanner
│   ├── gps/                   # GPS integration
│   ├── database/              # Database models & ORM
│   ├── matcher/               # Signature matching engine
│   ├── api/                   # RESTful API
│   └── web/                   # Web interface
│
├── signatures/                # Signature databases
│   ├── flipper/              # Flipper Zero .sub files
│   ├── rtl433/               # RTL_433 protocols
│   ├── urh/                  # URH signal definitions
│   └── community/            # User submissions
│
├── scripts/                   # Utility scripts
├── config/                    # Configuration files
└── tests/                     # Test suite

Key Technical Decisions

1. Hardware Stack

• Primary Device: LilyGo T-Embed with CC1101 (300-928 MHz)
• Control Hub: Android Termux environment
• GPS Source: Android device native GPS
• Communication: USB Serial (115200 baud, JSON protocol)

2. Database

• Engine: PostgreSQL with PostGIS for geospatial queries
• ORM: SQLAlchemy for Python integration
• Migration: Alembic for schema versioning

3. API Architecture

• Framework: FastAPI (async, high performance)
• Server: Uvicorn with uvloop
• Authentication: JWT tokens, API keys

4. Signature Sources

1. Flipper Zero: 1000+ device signatures (.sub format)
2. RTL_433: 200+ protocol definitions (JSON)
3. URH: Community signal patterns
4. User Submissions: Photos + verified captures

5. Matching Strategy

• Exact match: Protocol + Frequency + Timing (100% confidence)
• Partial match: Protocol + Frequency (80% confidence)
• Bit pattern matching with masks (90% confidence)
• Weighted scoring based on source reliability

Next Steps - Implementation Roadmap

Phase 1: Core Infrastructure (Week 1-2)

Priority: HIGH

Database Setup

• Install PostgreSQL in Termux
• Create database and user
• Run schema creation script (from database_schema.md)
• Set up Alembic migrations
• Test geospatial queries

T-Embed Integration

• Flash Bruce firmware to T-Embed
• Test serial communication from Termux
• Verify command/response protocol
• Implement error handling and reconnection
• Create scanner module (src/capture/scanner.py)

GPS Module

• Create GPS manager (src/gps/manager.py)
• Test Android SL4A integration
• Implement coordinate streaming
• Add accuracy filtering
• Create GPS logging

Phase 2: Signature Import (Week 2-3)

Priority: HIGH

Flipper Zero Database

• Clone flipperzero-firmware repository
• Extract .sub files from assets
• Create parser (src/matcher/flipper_parser.py)
• Import signatures to database
• Verify protocol coverage

RTL_433 Protocols

• Clone rtl_433 and rtl_433_tests
• Extract protocol definitions
• Create parser (src/matcher/rtl433_parser.py)
• Map JSON fields to database schema
• Import test data samples

Import Scripts

• scripts/import_flipper.py
• scripts/import_rtl433.py
• scripts/update_signatures.sh (cron job)

Phase 3: Matching Engine (Week 3-4)

Priority: HIGH

Signature Matcher

• Create matcher module (src/matcher/engine.py)
• Implement exact matching
• Implement partial matching
• Add bit pattern matching with masks
• Create confidence scoring algorithm
• Optimize database queries

Testing

• Unit tests for matching logic
• Test against known signatures
• Benchmark query performance
• Validate confidence scores

Phase 4: Capture Workflow (Week 4-5)

Priority: HIGH

Capture Coordination

• Create main capture loop (src/main.py)
• Integrate T-Embed + GPS + Database
• Implement event handling
• Add automatic signature matching
• Create session management
• Implement capture deduplication (file hashing)

File Management

• .sub file storage on SD card
• Automatic file retrieval
• Local caching strategy
• Export to multiple formats

Phase 5: API Development (Week 5-6)

Priority: MEDIUM

RESTful API (src/api/)

• FastAPI application setup
• Authentication (JWT + API keys)
• Endpoints:
  • POST /api/captures (submit capture)
  • GET /api/captures (query by location/time)
  • GET /api/devices (device database)
  • POST /api/identifications (user ID)
  • GET /api/sessions (capture sessions)
  • GET /api/heatmap (geographic density)
• Rate limiting
• CORS configuration
• API documentation (OpenAPI/Swagger)

Phase 6: Web Interface (Week 6-8)

Priority: MEDIUM

Mapping UI (src/web/)

• Choose mapping library (Leaflet.js/Mapbox)
• Create heatmap visualization
• Device marker clustering
• Click for device details
• Filter by protocol/frequency/device type
• Timeline slider for captures

Capture Interface

• Live capture status display
• Session controls (start/stop)
• Statistics dashboard
• Device identification form
• Photo upload for evidence

Community Features

• User registration/login
• Device identification voting
• Reputation system
• Leaderboard

Phase 7: Community System (Week 8-10)

Priority: LOW

• User authentication system
• Device submission workflow
• Photo storage (local/S3)
• Voting and verification
• Moderation tools
• Public API for data access

Phase 8: Optimization & Deployment (Week 10-12)

Priority: LOW

• Database query optimization
• Materialized view refresh strategy
• Caching layer (Redis)
• Background job queue (Celery)
• Mobile responsive UI
• Docker containerization
• CI/CD pipeline
• Production deployment guide

Immediate Next Steps (This Week)

1. Database Setup (Day 1)

# Install PostgreSQL in Termux
pkg install postgresql

# Start PostgreSQL
initdb ~/postgres
pg_ctl -D ~/postgres -l logfile start

# Create database
createdb giglez

# Run schema
psql giglez < scripts/schema.sql

2. Create Schema Script (Day 1)

Extract SQL from docs/database_schema.md into executable script.

3. T-Embed Testing (Day 2-3)

• Flash Bruce firmware
• Test serial communication
• Verify JSON protocol
• Capture test signals

4. GPS Integration (Day 3-4)

• Install SL4A in Android
• Test GPS acquisition
• Stream coordinates to Termux
• Log GPS data

5. First Capture (Day 5)

• Integrate all components
• Capture real signal with GPS
• Store in database
• Verify data integrity

Known Challenges

Technical

1. Battery Life: Continuous GPS + RF scanning drains battery quickly
   • Solution: Implement duty cycling, power management
2. Serial Reliability: USB serial can disconnect on Android
   • Solution: Auto-reconnect logic, connection monitoring
3. Database Size: Raw captures can grow large quickly
   • Solution: Compression, selective storage, archival strategy

Hardware

1. CC1101 Frequency Gaps: Can't cover entire spectrum
   • 300-348, 387-464, 779-928 MHz only
2. Antenna Tuning: Different frequencies need different antennas
   • Solution: Multi-band antenna or frequency-specific sessions

Community

1. Verification Quality: User-submitted IDs may be incorrect
   • Solution: Multi-voter verification, reputation system
2. Privacy: GPS coordinates could reveal home locations
   • Solution: Anonymization options, GPS precision controls

Resources Needed

Development

• Termux on Android with USB OTG support
• LilyGo T-Embed CC1101 device
• SD card (16GB+) for T-Embed
• Multi-band sub-GHz antenna

Testing

• Known devices for validation (garage remote, car key fob, etc.)
• RTL-SDR for signal verification (optional)

Success Metrics

Phase 1 Complete When:

• ✅ Database schema created and tested
• ✅ T-Embed communicates reliably with Termux
• ✅ GPS coordinates stream to application
• ✅ First signal captured and stored with GPS

MVP Complete When:

• ✅ 1000+ signatures imported (Flipper + RTL_433)
• ✅ Automatic device matching works
• ✅ Web interface shows captures on map
• ✅ Can capture, identify, and visualize devices end-to-end

Production Ready When:

• ✅ Community submission system live
• ✅ API publicly accessible
• ✅ 10,000+ captures in database
• ✅ 50+ verified device types
• ✅ Multi-user support with authentication

Contributing

See CONTRIBUTING.md for development workflow, code standards, and pull request process.

Questions & Discussion

For questions about architecture decisions or implementation approaches, see:

• Technical discussions: GitHub Issues
• Implementation help: GitHub Discussions
• Real-time chat: [Discord] (coming soon)

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Last Updated: 2025-01-11 Next Review: After Phase 1 completion