About

A lightweight C# console application that runs in the system tray, collects PC sensor data, and transmits it using Modbus RTU over serial (COM) port.

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Installation & Running

Download the latest release

Go to Releases and download the latest version.

Configure the application

1. Run the application once to create config.json
2. Right-click the tray icon and select Open Config
3. Modify the configuration file to match your setup

The application icon will appear in the system tray.

Typical Configuration Example:

{
  "COM_PORT": "COM4",
  "BOUDRATE": 19200,
  "SLAVE_ID": 1,
  "REG_0_CPU_TEMPERATURE": true,
  "REG_1_CPU_LOAD": true,
  "REG_2_GPU_TEMPERATURE": true,
  "REG_3_GPU_LOAD": true,
  "REG_4_RAM_LOAD": true
}

Tray Management

Right-click the tray icon to access:

• Show console - Opens the console with logs that show successful and failed connection attempts and their timestamps
• Hide console - Hides the console from view
• Status — Displays current connection status
• Reload utility — Restart the application (applies config changes)
• Open Config — Opens PC_Sensors2Modbus_Сonfig.json in default text editor
• Exit — Graceful application shutdown

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Building from Source

Requirements

• .NET 6.0 SDK or higher
• Visual Studio 2022 or VS Code

Clone and Build

git clone https://github.com/Sancho-M/Sensors2Modbus
cd Sensors2Modbus

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Libraries Used

• NModbus — Modbus protocol implementation
• LibreHardwareMonitorLib — Hardware sensor data collection

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License

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

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Third-Party Licenses

This software uses the following third-party libraries — See the THIRD-PARTY-NOTICES.txt file for details.

Library	License
LibreHardwareMonitorLib	Mozilla Public License 2.0
NModbus	MIT License

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Known Limitations

• Windows only
• Modbus RTU only (RS485/RS232)
• Administrator privileges recommended for sensor access

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⚠️ Attention

Please add the .exe file to Windows Defender exclusions. Antivirus programs often flag LibreHardwareMonitorlib.

After making changes to the configuration, click the "reload utility" option in the tray.