I'm trying to make a template project tidier while waiting for an answer to a question and have removed a load of functions from main to serial.c but VSC is telling me
it can't find functions even though they're there and in a header file that is referenced from main.c
The new serial.c file is not actually in the project, which is presumably why it's moaning, but I cannot see how to add a file to a project and can find nothing on DuckDuckGo that tells me. You'd expect to right click on the project and add existing file normally.
How do I add a file to a project please?
