- Install Microsofts Arduino Extension
- Check your
c_cpp_properties.json:- Make sure your
includePathcontains the path where the Arduino IDE installs libraries - Make
definesinclude"USBCON"
- Make sure your
- Make a test compile with
[STRG]+[ALT]+[R] - Check if there are any errors in your source files. If so, double check your
includePathsettings.