Open an existing Arduino IDE project

You can also 'import' an Arduino IDE project. Just open the project folder in VisualTeensy and make sure that you select Arduino-Build System on the settings-tab after opening the folder. If you now generate the project (FILE | SAVE), VisualTeensy will add the required setup and config files for vsCode and you can build as usual. The added files do not conflict with the Arduino IDE so that you can switch between it and vsCode without problems.

Note: The Arduino IDE currently does not save any information about the used settings (board, USB-Type etc.) in the project folder. Thus, you need set those manually the first time you open an Arduino-IDE project in VisualTeensy.