Library Location

Development Tools IDE 1.x
1

When I look at the list of installed libraries by going to sketch/include libraries , I get a longer list of libraries than are in the Mysketches/Library folder.

Where are the other libraries stored and why are all libraries not in the same folder?

I am trying to look at some of the *.h and *.cpp files but can't find them

2

cbrucewarren:
Where are the other libraries stored

There are 3 locations for library files:

  • Sketchbook: {sketchbook location}/libraries (File > Preferences > Sketchbook location:)

  • IDE: {Arduino IDE install folder}/libraries

  • Core: This is dependent on the current selection in Tools > Board. Location will depend on if you're using a hardware core bundled with the IDE, installed via Boards Manager, or manually installed to {sketchbook location}/hardware. The best way to find it is to do:

  • Tools > Examples > SPI > BarometricPressureSensor

  • Sketch > Show Sketch Folder - this will open the SPI/examples/BarometricPressureSensor folder inside of the current hardware core's libraries folder

cbrucewarren:
why are all libraries not in the same folder?

The sketchbook libraries are separate so that they will not be lost when a new version of the IDE or hardware core is installed, the hardware core libraries are separate because there are different ones for each hardware core.

cbrucewarren:
I am trying to look at some of the *.h and *.cpp files but can't find them

To find any library do this:

  • Tools > Examples > open any example from the library you want to find
  • Sketch > Show Sketch Folder - this will open the example folder inside of the library folder.