Adding Libraries to your Sketch
What are libraries?
Libraries are program modules that other people wrote and that you can
integrate into your project in order to use them. The classic Arduino IDE
comes with lots of libraries for purposes like controlling stepper motors,
reading and writing the EEPROM and so on.
You can find a description of available Arduino libraries on the
Arduino homepage.
To add a library, choose vMicro > Add Library.
"Built-In" will let you
add a library that comes with the Arduino IDE or that was installed by
your hardware manufacturer
"User" lets you add libraries that you created yourself.
Read below where Visual Micro searched for built-in
and user libraries.
You will find the same menu items in the main
menu.
Visual Micro will add the necessary include directives into your
code:
Under the "Core" menu item, Visual
Micro always shows those libraries that fit to the selected board.
If you switch to a different board you might notice that the list of
libraries changes as well.
Installing new libraries
You can install additional libraries that you downloaded from the Web
with the 
menu item.
You can open a ZIP file containing a library, and Visual Micro will install
it in the user library folder. From then on, you can add this library to
your projects like described above.
Do not forget to use the menu
item to make the newly installed library appear in the "User" selection
box!
Search path for user libraries
Visual Micro searches for user libraries in the "Libraries" subfolder of
your sketchbook folder, provided you have specified a sketchbook location in
the Configuration Manager. If
you did not specify a sketchbook location in the configuration manager,
then Visual Micro searches in a "Libraries" subfolder.
1 is the user libraries folder, 2 are
your sketch folders.
For every library, you must create a subfolder in your "Libraries"
folder:
Installing Additional Libraries Directly From
the Web
The "Add libraries" menu lets you choose among those libraries that are installed and
available on your PC.
You can install additional libraries
directly from web sites using the "Manage
Libraries" tab of the Visual Micro Explorer.
Access via the "Micro Project" Toolbar
You can also access the "Add Library" function via the "Micro Project"
toolbar. To make this toolbar visible, right click on an empty space in the
toolbar area and select "Micro Project":
Adding Libraries the "Arduino IDE Way"
Traditionally, that is, in the original Arduino IDE, you can add
libraries simply by adding an #include statement
into the main .ino file.
For several reasons, this is not recommended with Visual Micro,
for example, Visual Micro updates the Visual Studio Intellisense
after adding a library, so that you will be offered the libary functions
with Intellisense. This won't happen if you add libraries simply by adding
an #include.
