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README.md

Serial Bridge - COM Port Reader

This is the serial port reading application that runs as a system tray service.

Features

✅ Reads data from COM ports
✅ Runs in system tray (no console window)
✅ Automatically posts data to Django backend
✅ Retry logic for failed posts
✅ Backend health checks
✅ Configurable via environment variables
✅ Can be packaged as a Windows .exe

Setup

Install Python dependencies:
```
pip install -r requirements.txt
```

Configure environment:

copy .env.example .env
# Edit .env with your settings

Run the application:
```
python app.py
```

Building as EXE

To create a standalone Windows executable:

pip install pyinstaller
pyinstaller serial_bridge.spec

The executable will be created in the dist\ScalesApp\ folder.

Configuration

Edit .env to configure:

COM_PORT: COM port to read from (default: COM1)
BAUD_RATE: Serial port baud rate (default: 9600)
BACKEND_URL: Django backend URL (default: http://localhost:8000)
AUTO_CONNECT: Automatically connect on startup (default: True)
DEBUG: Enable debug logging (default: False)

Architecture

COM Port → Serial Reader → Backend Client → Django API
                             ↓
                         System Tray Icon

Logging

Logs are written to serial_bridge.log and console output.

Troubleshooting

COM port not found: Check COM_PORT setting and device connection
Cannot connect to backend: Verify Django server is running on BACKEND_URL
Data not posting: Check logs in serial_bridge.log
Tray icon not appearing: Run as administrator, check Windows settings