History[ edit ] The examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject. You may improve this articlediscuss the issue on the talk pageor create a new articleas appropriate. He put into practice all the ideas put forth in Advice when given the opportunity to build and maintain the library of Cardinal Jules Mazarin.
Once you are comfortable with the Arduino software and using the built-in functions, you may want to extend the ability of your Arduino with additional libraries. Libraries are a collection of code that makes it easy for you to connect to a sensor, display, module, etc.
There are hundreds of additional libraries available on the Internet for download. The built-in libraries and some of these additional libraries are listed in the reference.
To use the additional libraries, you will need to install them. Then the Library Manager will open and you will find a list of libraries that are already installed or ready for installation.
In this example we will install the Bridge library. Scroll the list to find it, click on it, then select the version of the library you want to install.
Sometimes only one version of the library is available.
If the version selection menu does not appear, don't worry: Finally click on install and wait for the IDE to install the new library. Downloading may take time depending on your connection speed. Once it has finished, an Installed tag should appear next to the Bridge library.
You can close the library manager. If you want to add your own library to Library Manager, follow these instructions. The name of the folder is the name of the library. Inside the folder will be a. Starting with version 1. Do not unzip the downloaded library, leave it as is. At the top of the drop down list, select the option to "Add.
You will be prompted to select the library you would like to add. You should now see the library at the bottom of the drop-down menu. It is ready to be used in your sketch. The zip file will have been expanded in the libraries folder in your Arduino sketches directory.
Manual installation When you want to add a library manually, you need to download it as a ZIP file, expand it and put in the proper directory. The ZIP file contains all you need, including usage examples if the author has provided them. The library manager is designed to install this ZIP file automatically as explained in the former chapter, but there are cases where you may want to perform the installation process manually and put the library in the libraries folder of your sketchbook by yourself.
Verify that the library you just added is available in the list. Arduino libraries are managed in three different places: The way libraries are chosen during compilation is designed to allow the update of libraries present in the distribution.
The same happens for the libraries present in additional cores installations. It is also important to note that the version of the library you put in your sketchbook may be lower than the one in the distribution or core folders, nevertheless it will be the one used during compilation.
This is why we recommend that you only install libraries to the sketchbook folder so they are not deleted during the Arduino IDE update process.
This tutorial based on text by Limor Fried. Code samples in the guide are released into the public domain.The library manager is designed to install this ZIP file automatically as explained in the former chapter, but there are cases where you may want to perform the installation process manually and put the library in the libraries folder of your sketchbook by yourself.
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