Tomas Kracmar
0a4fb7b55e
Includes: - Backend services: ingestion (:8001), weather API (:8002), gateway (:8003), billing (:8004) with BTCPay integration - Shared asyncpg pool, TimescaleDB hypertable, Redis, Mosquitto MQTT - React frontend: Dashboard (MapLibre) and Messaging (chat UI) - Bridge daemon for Pi + Meshtastic (Serial/TCP T-Deck support) - Production Docker Compose, Nginx reverse proxy, ops scripts - DEPLOY.md with step-by-step deployment guide
80 lines
3.3 KiB
Markdown
80 lines
3.3 KiB
Markdown
# Hardware
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This directory contains all hardware designs, schematics, BOMs, and mechanical files for the KosmoConnect project.
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## Directory Structure
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```
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hardware/
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├── enviro-node/ # Solar-powered environmental station
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│ ├── pcb/ # KiCad / EasyEDA project files
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│ ├── enclosure/ # 3D models, STL files, mounting hardware
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│ ├── sensors/ # Sensor datasheets, integration notes
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│ ├── power/ # Solar panel, battery, charge controller specs
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│ └── bom/ # Bill of materials, sourcing guides
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├── infrastructure-node/ # Bridge node hardware (may be off-the-shelf)
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│ ├── off-the-shelf/ # Recommended COTS devices (T-Beam, RAK, etc.)
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│ └── custom/ # Optional custom bridge PCB designs
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└── common/ # Shared libraries, footprints, symbols
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├── kicad-libs/
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└── 3d-models/
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```
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## Enviro-Node Hardware Overview
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### Brain
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- **Option A**: ESP32-S3-WROOM-1 (dual-core, WiFi/BT if needed, good dev ecosystem)
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- **Option B**: nRF52840 (lower power, native Meshtastic support, harder dev)
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**Decision**: Start with ESP32-S3 for rapid development; evaluate nRF52840 for v2 power optimization.
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### Radio
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- **Semtech SX1262** (915 MHz NA / 868 MHz EU / 433 MHz regions)
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- TCXO for stability across temperatures
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- External antenna (SMA or u.FL)
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### Sensors (v1)
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- **BME680**: Temperature, humidity, pressure, VOC/gas
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- **SPS30**: Particulate matter (PM1.0, PM2.5, PM4.0, PM10)
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- **Anemometer**: Davis 6410 or custom 3-cup + wind vane
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- **Rain gauge**: Optional tipping bucket (WH-SP-RG)
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### Power System
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- **Solar Panel**: 10W monocrystalline
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- **Battery**: 3.2V 32700 LiFePO4 6000mAh (safer than LiPo for outdoor unattended)
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- **Charge Controller**: Custom MPPT or CN3791-based board
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- **Power Management**: TPS63001 buck-boost, load switches for sensors
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### Enclosure
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- Polycarbonate or ABS outdoor enclosure
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- Solar panel mounted on lid or external pole
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- Glands for antenna and sensor cables
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- Passive ventilation for accurate T/H readings
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## Power Budget (v1 Estimate)
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| Component | Active Current | Sleep Current | Duty Cycle | Daily mAh |
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|-----------|---------------|---------------|------------|-----------|
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| ESP32-S3 | 80mA | 15µA | 1% | ~22 |
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| SX1262 | 10mA TX | 0.5µA | 0.1% | ~1 |
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| BME680 | 3mA | 0.15µA | 1% | ~1 |
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| SPS30 | 60mA | 0mA | 1% | ~15 |
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| Anemometer | 0mA (passive) | 0mA | 100% | 0 |
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| Quiescent | - | 0.5mA | 99% | ~12 |
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| **Total** | | | | **~51 mAh/day** |
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A 10W panel in winter (2h effective sun) produces ~400mAh/day. A 6000mAh battery provides ~80 days of autonomy. This is viable but tight; v2 will aggressively optimize sleep current.
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## Recommended Infrastructure Node Hardware
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For rapid deployment, use off-the-shelf Meshtastic devices:
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- **LILYGO T-Beam 868/915MHz** + ESP32 (good for WiFi/LTE backhaul)
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- **RAKwireless WisGate Edge Lite 2** (if building a dedicated gateway)
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- **Raspberry Pi 4 + RAK2287 HAT** (for a more powerful Linux-based bridge)
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## Design Files
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- [Enviro-Node v1 BOM](./enviro-node/bom/bom-v1.md) *(placeholder)*
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- [Power Budget Spreadsheet](./enviro-node/power/budget-v1.ods) *(placeholder)*
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- [Enclosure Assembly Guide](./enviro-node/enclosure/assembly-v1.md) *(placeholder)*
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