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Assuming you have Visual Studio Code and PlatformIO installed

Windows Prerequisite

  • Install mingw-w64 from
  • In the windows search bar type env and select Edit the system environment variables
  • Click the Environment Variables... button and in the System variables section double-click Path and click New then paste C:\Program Files (x86)\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin. This path may be different on your system, but it is the path that mingw-w64 was installed previously and where g++.exe is located.

Running the tests

  • In VSCode with the ExpressLRS project open, click on the New Terminal button in the status bar
  • Ensure the native platform is installed by entering pio platform install native in the terminal window.
  • Now you can enter pio test -e native to run the tests.
  • It is also possible to use the PlatformIO module and select Native/Advanced/Test in the target selection list.