Using Arduino ver 1.8.12 on a windows machine ver 10.0.1 with an Arduino UNO board and not able to find library. Going to Sketch, Include Library, Manage Library then I search. Find a library that may be what I need and click on it and it comes back INSTALLED. Where is it installed? Never can find it. Looked under File, Examples and nope not there at least not to my recognition. Where did it go and where will i find it to use it.
Thanks Jack
burkard:
Find a library that may be what I need
Please state the exact name of the library, as shown in Library Manager.
burkard:
Where is it installed?
It's installed to the libraries subfolder of your sketchbook folder, to a folder with the same name as the library name, except with all spaces changed to _.
You can find the location of your sketchbook folder by checking the Arduino IDE's File > Preferences > Sketchbook location preference.
In some rare cases, Library Manager may not be able to create a folder of the desired name (usually when you're doing an update of a library while you have the existing folder open, and thus locked from deletion). In that case, the library is installed to a folder named arduino_nnnnn, where nnnnn is a random number.
burkard:
Looked under File, Examples and nope not there at least not to my recognition.
Some library author weren't so kind as to add examples. Others attempted to add examples, but didn't take the time to understand what is required to make a valid Arduino sketch, so their examples aren't recognized by the Arduino IDE. If the library doesn't have examples, it won't show under the File > Examples menu. Fortunately, most Arduino libraries do have examples.
All installed libraries will be listed under the Sketch > Include Library menu. Note that there is no magic to that menu. If you click a library name there, the only thing it does is add #include directive(s) for the library's header files to your sketch. There is no difference between that and you manually typing the #include directive, but it is convenient.
burkard:
where will i find it to use it.
You don't actually need to know where a library is to use it. You only need to provide the header name in the #include directive and the Arduino IDE finds the library. For example, let's say you wanted to use a library that had the header file named Foobar.h, you only need to add this line to your sketch:
#include <Foobar.h>
However, it is certainly nice to know where things are on your computer and to be able to take a look at the library's readme and source code.