# 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)
```bash
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)
```bash
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)
```bash
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)
```bash
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)
```bash
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)
```bash
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)
```bash
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)
```bash
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)
```bash
# 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](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)

---

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