Merge pull request #82 from arduino/Add-a-library-to-Arduino-IDE

Add a library to Arduino IDE

content/Software and Downloads/Installation/Add-a-library-to-Arduino-IDE.md

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+---
+title: "Add a library to Arduino IDE"
+---
+
+Libraries are a collection of code that provide extra functionality for use in sketches, for example when working with hardware or manipulating data.
+
+Learn how to add a library to Arduino IDE.
+
+---
+
+## Using the Library manager
+
+1. In the menu bar, go to `Tools > Manage Libraries...` (In IDE 2, you can also click on the Library Manager icon on the left).
+
+2. Search for the library you want to install.
+
+3. Find the library in the search results.
+
+4. Click on the INSTALL button.
+
+   ![IDE 1 Library Manager with search box and Install button highlighted](img/LibraryManager_InstallingLibrary_IDE1.png)
+
+   ![IDE 2 Library Manager Icon, search box, and Install button highlighted](img/LibraryManager_InstallingLibrary_IDE2.png)
+
+5. Wait for the installation to complete.
+
+---
+
+## Importing a .zip Library
+
+1. In the menu bar, go to `Sketch > Include Library > Add .ZIP Library...`
+
+2. You will be prompted to select the library you want to add. Navigate to the .zip file's location and open it.
+
+3. If you're using Arduino IDE 2.x, you may need to restart it for the library to be available[^1].
+
+[^1]: https://github.com/arduino/arduino-ide/issues/659
+
+---
+
+## Manual Installation
+
+1. Go to the directory where you have downloaded the .zip library file.
+
+2. Extract the .zip file.
+
+3. Select the main folder (it should have the library's name) and move it to the "libraries" folder [inside your sketchbook](https://support.arduino.cc/hc/en-us/articles/4412950938514-Open-the-Sketchbook).
+
+4. Restart Arduino IDE.
+
+> Note that adding a library to the "libraries" folder in the sketchbook will override other previously installed library versions.
+
+---
+
+## Further reading
+
+* [Uninstall a library from Arduino IDE](https://support.arduino.cc/hc/en-us/articles/360016077340-Uninstall-a-library-from-Arduino-IDE)
+
+* [Installing libraries in the Arduino IDE 1](https://docs.arduino.cc/software/ide-v1/tutorials/installing-libraries#importing-a-zip-library) on Arduino Docs
+
+* [Installing libraries in the Arduino IDE 2](https://docs.arduino.cc/software/ide-v2/tutorials/ide-v2-installing-a-library) on Arduino Docs
+
+* About [#include](https://www.arduino.cc/reference/en/language/structure/further-syntax/include/)