Adding External Libraries to NRF5840 DK using NRFConnect SDK in VSCode

[Neb01]

Hi,

I'm trying to develop a simple application on the NRF5840 DK using the NRFConnect SDK inside VScode. 
I am struggling to see how to add external libraries to an application? Where does one place them within the project, and what does one need to add to the CMakeLists.txt so that the main.c can find the header files?

I've followed the youtube series for setting up NRFConnect and set things up correctly (I believe) - I've managed to get the blinky and button program etc working, as well as editing them.

I've also managed to make a small test library using the method laid out in the below video:

https://www.nordicsemi.com/Products/Development-tools/nRF-Connect-for-VS-Code#:~:text=The%20nRF%20Connect%20for%20VS,cross%2Dplatform%20and%20popular%20IDE.

 - which looks like the below image:

However, I cannot figure out how to add more complex libraries. I would like to use this library to connect to a notecard (https://github.com/blues/note-nrf52) which I believe also needs this library (https://github.com/blues/note-c), but when I try adding them, the compiler cannot see the #include "note.h" header file. Would I have to use a different method of including the library to the lines added to the CMakeList.txt in the image above? I'm confused because the note-c-master library isn't a simple single .c file with a corresponding .h file.

this was my attempt:

Thanks

[Neb01]

Sorry, that should be NRF52840 DK *

[Didrik Rokhaug]

Hi, and sorry for the late reply.

Could you send me the whole build log?

You shouldn't need to add the header file as a source file, just the directory it is in as an include directory.

However, you will have to include the .c files.

One way to do that without having to list every single file manually would be something like this:

FILE(GLOB app_sources src/*.c)
target_sources(app PRIVATE ${app_sources})

Best regards,

Didrik

[Neb01]

Hi Didrik,

thanks, those two lines of code seem to have fixed things for me.

Thanks