PowerMon Plugin for TrafficMonitor

PowerMon is a TrafficMonitor plug-in for displaying battery, CPU, GPU, platform, and other power-related sensor information.

Open-source announcement — 2026-07-26

Starting today, this project is fully open source. The complete source code and build files are available here. Issues, bug reports, and contributions are welcome.

• Battery power, percentage, capacity, voltage, and remaining-time items
• CPU, GPU, and platform power monitoring where supported by the hardware
• Configurable value precision, units, spacing, and display formatting
• Smart power display: battery discharge power on battery, or combined CPU/GPU power when connected to external power

1. Install a compatible version of TrafficMonitor. Its plug-in system is available in TrafficMonitor 1.82 and later.
2. Download the ZIP for your CPU architecture from this repository’s Releases page. x64 is recommended; ARM64 and ARM64EC builds are less thoroughly tested.
3. Close TrafficMonitor, then copy PowerMonPlugin.dll into the plugins directory next to TrafficMonitor.exe.
4. If the release includes LibreHardwareMonitorLib.dll, copy that file next to TrafficMonitor.exe — not into plugins. Keep the files from the same release together; incompatible library versions can prevent the plug-in from loading.
5. Start TrafficMonitor. Open More Functions → Plugin Management to confirm that PowerMon loaded, then enable its items in the display settings.

If TrafficMonitor does not start after installation, remove PowerMonPlugin.dll from its plugins directory and restart it. Please include your TrafficMonitor version, Windows version, CPU architecture, and any error message when reporting an issue.

• Windows
• Visual Studio 2022 or Visual Studio Build Tools with the C++ desktop workload (MSVC v143)
• Windows SDK
• .NET Framework 4.7.2 targeting pack

The repository includes the compatible LibreHardwareMonitorLib.dll under PowerMonPlugin/lib.

Build the default x64 release from PowerShell:

.\shell\build-powermon.ps1 -Configuration Release -Platform x64

Or open TrafficMonitorPlugins.sln in Visual Studio, select the PowerMonPlugin project, choose Release and the target platform (Win32, x64, ARM64, or ARM64EC), and build it. The output is written to:

bin\PowerMonPlugin\Release\<platform>\PowerMonPlugin.dll

Use the local release script after main has been pushed to GitHub. It builds and packages the selected architectures, produces SHA256SUMS.txt, and creates a GitHub Release from the current commit.

Install and authenticate GitHub CLI once:

gh auth login

Then create a release (the tag must use the vMAJOR.MINOR.PATCH format):

.\shell\publish-github-release.ps1 -Version v1.0.0

By default, the script produces separate x64, ARM64, and ARM64EC ZIP files. Add -Draft to inspect the release before publishing, or pass -Platform x64,Win32 if you need a 32-bit build instead.

Use -Notes "Your release notes" to prepend a release note to GitHub's generated change log.

This repository includes code and assets originating from the TrafficMonitor plug-in ecosystem. Preserve the existing notices when redistributing or modifying that code.

LibreHardwareMonitorLib.dll is third-party software distributed under the Mozilla Public License 2.0. Its source code and license are available from the LibreHardwareMonitor project.

2026-07-26：本项目从今天起全面开源。 源代码、构建文件和发布流程现已公开，欢迎提交 Issue、Bug 报告和贡献。