Hi @matthewcern. For this specific application where the macros defined in the conditional block are related to the board's pin mapping, I think it will be most appropriate to use the board identification macro: ARDUINO_UNOWIFIR4
In case you are interested in knowing the origin of this macro, it is defined via a -D flag in the compilation command patterns:
(note the -DARDUINO_{build.board})
The build.board platform property referenced in the command pattern is defined here in the board definition: