BankliPlus/temparea/solarbank

SolarBank IoT Dashboard

A full-stack Docker-based IoT dashboard system for monitoring LILYGO T-A7670G and SIM7000E NB-IoT + GPS modules. This system provides a comprehensive solution for tracking and managing IoT devices, with features for real-time monitoring, data visualization, and device management.

Features

• Real-time Device Monitoring: Track GPS coordinates, signal strength, battery levels, and device status
• LILYGO T-A7670G Support: Native support for LILYGO T-A7670G devices with specialized data endpoints
• Environmental Monitoring: Temperature, humidity, and solar voltage monitoring
• Interactive Map View: Visualize device locations using Leaflet.js with GPS fix status
• Comprehensive Dashboard: View device metrics and system status at a glance
• Device Management: Search, filter, and manage your IoT devices
• Logging System: Track and analyze device logs and events
• REST API: FastAPI backend for device data ingestion and retrieval
• Containerized Architecture: Docker-based deployment for easy setup and scaling

Technology Stack

Frontend

• React.js with WindSurf UI (Tailwind CSS)
• Leaflet.js for map visualization
• Chart.js for data visualization
• Axios for API communication

Backend

• FastAPI (Python) for REST API
• SQLAlchemy ORM for database operations
• PostgreSQL for data storage
• Redis for caching and background tasks

Infrastructure

• Docker and Docker Compose for containerization
• Nginx as reverse proxy with HTTPS support
• Let's Encrypt for SSL certificates

Project Structure

solarbank/
├── backend/               # FastAPI backend application
│   ├── app/               # Application code
│   │   ├── api/           # API endpoints
│   │   ├── core/          # Core functionality
│   │   ├── db/            # Database models and session
│   │   ├── models/        # SQLAlchemy models
│   │   └── services/      # Business logic
│   ├── Dockerfile         # Backend Docker configuration
│   ├── requirements.txt   # Python dependencies
│   └── migrate_iot_fields.py # Database migration for IoT fields
├── frontend/              # React frontend application
│   ├── public/            # Static files
│   ├── src/               # Source code
│   │   ├── components/    # React components
│   │   ├── pages/         # Page components
│   │   ├── services/      # API services
│   │   └── utils/         # Utility functions
│   ├── Dockerfile         # Frontend Docker configuration
│   └── package.json       # Node.js dependencies
├── nginx/                 # Nginx configuration
│   ├── conf/              # Nginx config files
│   └── Dockerfile         # Nginx Docker configuration
├── test_iot_device.py     # IoT device testing script
├── .env.example           # Example environment variables
└── docker-compose.yml     # Docker Compose configuration

Getting Started

Prerequisites

• Docker and Docker Compose
• Git

Installation

1. Clone the repository:

   git clone https://github.com/yourusername/solarbank.git
   cd solarbank
   

2. Create environment files:

   cp .env.example .env
   

3. Start the application:

   docker-compose up -d
   

4. Access the dashboard:

   • Frontend: http://localhost
   • API Documentation: http://localhost/api/docs

5. (Optional) Run database migration for existing databases:

   cd backend
   python migrate_iot_fields.py
   

Environment Variables

The following environment variables can be configured in the .env file:

Backend Settings

• API_PREFIX: Prefix for API endpoints
• DEBUG: Enable debug mode
• PROJECT_NAME: Name of the project
• SECRET_KEY: Secret key for security
• BACKEND_CORS_ORIGINS: List of allowed CORS origins

Database Settings

• POSTGRES_SERVER: PostgreSQL server hostname
• POSTGRES_USER: PostgreSQL username
• POSTGRES_PASSWORD: PostgreSQL password
• POSTGRES_DB: PostgreSQL database name

Redis Settings

• REDIS_HOST: Redis server hostname
• REDIS_PORT: Redis server port

JWT Settings

• JWT_SECRET_KEY: Secret key for JWT tokens
• JWT_ALGORITHM: Algorithm for JWT tokens
• ACCESS_TOKEN_EXPIRE_MINUTES: Token expiration time

Frontend Settings

• REACT_APP_API_URL: URL of the backend API
• REACT_APP_MAPBOX_TOKEN: Mapbox API token for maps

Nginx Settings

• DOMAIN_NAME: Domain name for SSL certificate
• EMAIL: Email for Let's Encrypt

API Endpoints

Device Endpoints

• GET /api/devices: Get all devices
• POST /api/devices: Create a new device
• GET /api/devices/{device_id}: Get a specific device
• PUT /api/devices/{device_id}: Update a device
• DELETE /api/devices/{device_id}: Delete a device

Telemetry Endpoints

• POST /api/data: Create new telemetry data (standard format)
• POST /api/data/iot: Create new telemetry data (LILYGO format)
• GET /api/data/device/{device_id}: Get telemetry for a specific device
• GET /api/data/latest: Get latest telemetry across all devices

Log Endpoints

• GET /api/logs: Get all logs
• POST /api/logs: Create a new log
• GET /api/logs/{log_id}: Get a specific log
• DELETE /api/logs/{log_id}: Delete a log

Status Endpoints

• GET /api/status: Get system status
• GET /api/status/devices: Get status of all devices

LILYGO T-A7670G Device Integration

Device Data Format

LILYGO T-A7670G devices should send telemetry data to the /api/data/iot endpoint in the following format:

{
  "device_id": "LILYGO_001",
  "device_name": "Zurich_Station_1",
  "firmware": "1.1.0",
  "temp": 24.5,
  "hum": 65.2,
  "solar_volt": 12.8,
  "battery_volt": 3.8,
  "signal": -65,
  "gps_fixed": true,
  "latitude": 47.3769,
  "longitude": 8.5417,
  "altitude": 408.5,
  "satellites": 8,
  "timestamp": 1234567890
}

Arduino/ESP32 Code Example

// Build JSON payload for LILYGO device
String buildJsonPayload() {
    String json = "{";
    json += "\"device_id\":\"" + String(DEVICE_ID) + "\",";
    json += "\"device_name\":\"" + String(DEVICE_NAME) + "\",";
    json += "\"firmware\":\"" + String(FIRMWARE_VERSION) + "\",";
    json += "\"temp\":" + String(temperature, 1) + ",";
    json += "\"hum\":" + String(humidity, 1) + ",";
    json += "\"solar_volt\":" + String(voltageSolar, 2) + ",";
    json += "\"battery_volt\":" + String(voltageBattery, 2) + ",";
    json += "\"signal\":" + String(signalStrength) + ",";
    json += "\"gps_fixed\":" + String(gpsFixed ? "true" : "false") + ",";
    json += "\"latitude\":" + String(latitude, 6) + ",";
    json += "\"longitude\":" + String(longitude, 6) + ",";
    json += "\"altitude\":" + String(altitude, 1) + ",";
    json += "\"satellites\":" + String(satellites) + ",";
    json += "\"timestamp\":" + String(millis() / 1000);
    json += "}";
    return json;
}

// Send data to server
bool sendData() {
    String json = buildJsonPayload();
    String http = "POST /api/data/iot HTTP/1.1\r\n";
    http += "Host: " + String(SERVER_IP) + "\r\n";
    http += "Content-Type: application/json\r\n";
    http += "Content-Length: " + String(json.length()) + "\r\n";
    http += "Connection: close\r\n\r\n";
    http += json;
    
    // Send via TCP/HTTP
    return sendDataViaTCP(http);
}

Field Descriptions

• device_id: Unique device identifier (required)
• device_name: Human-readable device name (optional)
• firmware: Device firmware version (optional)
• temp: Temperature in Celsius (optional)
• hum: Humidity percentage (optional)
• solar_volt: Solar panel voltage (optional)
• battery_volt: Battery voltage - automatically converted to percentage (optional)
• signal: Cellular signal strength in dBm (optional)
• gps_fixed: GPS fix status boolean (optional)
• latitude/longitude: GPS coordinates (optional)
• altitude: Elevation in meters (optional)
• satellites: Number of GPS satellites (optional)
• timestamp: Unix timestamp from device (optional)

Testing IoT Device Integration

Use the provided test script to verify your setup:

python test_iot_device.py

This script simulates LILYGO device data and tests various scenarios including:

• Basic data submission
• Multiple device simulation
• Edge cases (no GPS, low battery)
• Continuous monitoring

Standard Device Data Format (Legacy)

For non-LILYGO devices, use the standard /api/data endpoint with this format:

{
  "device_id": "device-001",
  "latitude": 47.3769,
  "longitude": 8.5417,
  "altitude": 408,
  "speed": 0,
  "heading": 0,
  "satellites": 8,
  "battery_level": 85,
  "signal_strength": -65,
  "temperature": 24.5,
  "extra_data": {
    "humidity": 45,
    "pressure": 1013
  }
}

Database Migration

For existing installations, run the migration script to add new IoT fields:

cd backend
python migrate_iot_fields.py

This adds the following fields to the telemetry table:

• gps_fixed: GPS fix status
• battery_voltage: Raw battery voltage
• humidity: Humidity percentage
• solar_voltage: Solar panel voltage
• device_timestamp: Device timestamp

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

This project is licensed under the MIT License - see the LICENSE file for details.

Acknowledgements

• FastAPI
• React
• Tailwind CSS
• Leaflet.js
• Docker
• LILYGO T-A7670G