Folder Location and Installation of Arduino Libraries

Where is Arduino Libraries Folder?

When you create a library for your Arduino project, you can share it with other people on the Internet. These libraries are called core or standard libraries.

The libraries are installed in a special folder within the sketchbook directory of the Arduino IDE software. Libraries in this folder are available when you select Sketch > Include Library.

Core libraries

Libraries are collections of code that can be added to an Arduino program to add extra functionality. They usually include support for external modules and boards, as well as commonly used functionalities. Ideally, they should also contain examples that demonstrate how to use the library. This will make it easier for others to understand how to use the library. Libraries are typically stored in the libraries directory, and can be easily accessed via the Sketch -> Include Library menu.

The libraries folder can be found in the Arduinolibraries directory, or in the folder you have set as the’sketchbook location’ in the Arduino IDE software (see ‘File’ > ‘Preferences’: ‘Sketchbook Location’). If the library is available on the internet, it will likely be in the form of a ‘zip file’.

Once the zip file is extracted, the folder and files should be copied into the libraries directory. Then restart the Arduino IDE, and if the library was installed correctly, you should see it under the Sketch -> Include Library menu.

Third-party libraries

The Arduino libraries folder contains a variety of third-party software packages. These libraries offer extra functionality for your programs, such as controling an LED matrix or reading an encoder. They can also add support for certain boards or common functionalities. These libraries are available for download from the Internet and typically come in the form of a zip file.

You can install these libraries in the Arduino IDE by using the Library Manager or the Sketch > Include Library menu. You will need to restart the IDE after installing each library. This is necessary because the IDE creates a database of available libraries internally, and it needs to restart to update this database.

Once you have installed a new library, you can export it into an archive and share it with others. The library folder should be placed in the Arduino/libraries/ directory on your computer. To do so, go to the Sketch > Include Library menu and select the option to add a.ZIP Library.

Installing libraries from the source code

Before you install a library from the source code, make sure to check that it is compatible with your Arduino board. This will prevent conflicts with existing libraries and will also avoid polluting the Arduino IDE’s /usr/local folder where it stores 3rd party libraries (the “libraries” folder).

You can find many core and third-party libraries online. Just download the zipped version and extract it. Once the library has been installed, you can find it in the Sketch > Include Library menu.

User-installed libraries are stored in a separate folder from the main Arduino IDE software, so they can be used with any future versions of the IDE. They are also portable between different computers. Libraries are files written in C or C++ that give your sketches extra functionality. Typically, they consist of a header file (.h) and a source file (.cpp). When you use a library in a project, the header file is imported to the project’s source code. The resulting code is then compiled to generate the binary for your board.

Delete libraries

There are several ways to delete libraries from the Arduino IDE, including using the Library Manager (requires IDE 2.0) or manually. However, you should only use the latter method if you are unsure about whether or not you need the library in your sketch.

The first step is to find the location of your sketchbook folder. This can be found by clicking “File > Preferences” and selecting the Sketchbook Location tab. The sketchbook folder is where the IDE will look for user installed libraries.

Once you have found the sketchbook folder, you can then find the library you want to remove. To do so, hover over the INSTALLED label next to the library name. When the INSTALLED button changes to UNINSTALL, click it. This method is simple and works for all types of libraries and versions of the IDE. It also works well for removing multiple libraries at once. It is a good idea to back up the libraries before deleting them in case you need them again.

Click to get more information

Storing Arduino Libraries for Easy Code Management and Functionality Expansion

Where Arduino Libraries Are Stored

Libraries are a way to offload functionality from your main arduino sketch into something much more manageable. They can make code much easier to read, especially when used regularly.

Libraries are small packages of code that provide your sketches with extra functionality. They can simplify complicated tasks like connecting to sensors and displays.


If you’re going to be using Arduino, it is a good idea to have the library folder set up on your computer. This will allow you to easily find and use pre-crafted libraries that make it easier for you to connect to sensors, displays, and other modules. Libraries simplify complex code with a single function, and they are only used when the specific sketch you’re running needs them.

The simplest way to install an Arduino Library is to choose Sketch > Include Library > Manage Libraries from the Arduino IDE menu. This will open a list of hundreds of libraries that have been submitted to the Arduino servers and approved for inclusion into the IDE. Choose the one you want, and the Library Manager will automatically ensure that the library gets installed correctly to your Arduino IDE libraries folder. Examples of libraries include EEPROM, which helps you read and write data to the Arduino’s electronically erasable programmable read-only memory; Firmata, which lets your Arduino communicate with other devices and software via standard communication protocols; and LiquidCrystal, which makes it easy for your Arduino to talk to most character LCD displays.


Libraries are pieces of code that make it easy to perform complex programming tasks. Thousands of libraries are available for everything from controlling LCD displays to driving motors to reading sensors.

If you create your own library, it will be stored in the default libraries folder (which varies by operating system) under your sketch directory as a subdirectory named after the library. Libraries included in board packages are stored within the library subfolder of the board package folder.

The Arduino IDE has a library manager that can install libraries with the click of a button. To open the library manager, navigate to Sketch > Include Library. The library manager will show a list of installed libraries with a drop down menu and search bar for filtering.


You can install libraries in a folder outside the Arduino software, called a sketchbook. The IDE checks the sketchbook at startup to determine which libraries it has installed. Libraries not present in the IDE can be added to the sketchbook by choosing Sketch > Include Library.

A sketch is a set of code files that make up a program. Typically, the name of the program is the name of the folder that contains the code. Each file in a sketch has an extension that defines it as a different part of the program:.ino (default) or.pde (deprecated).

Using a folder for your sketches makes it easy to find the ones you need and keeps them organized. This can also help prevent lost work in the event of a power failure or app shutdown. You can back up your sketchbook to iCloud or the local device. See the support article on backing up your sketchbook for more information.


Using libraries allows you to add extra functionality to your sketches, such as using complex hardware or including functions that would be difficult to program from scratch. They also enable you to learn new skills through a ‘learn by doing’ approach.

Library files are included in your sketch when you choose Sketch – Include Library. If the library is a standard Arduino one (those included in the latest release of the Arduino IDE, at time of writing (1.8.5)), it will be listed in the Library Manager window.

Alternatively, you can download libraries distributed as ZIP files and manually install them on your computer. To do this, select the green button “Code” in the Library Manager and follow the on-screen instructions. Once installed, the library will appear in the ‘Libraries’ menu when you open the IDE. If the ‘Libraries’ menu isn’t available, you need to restart the Arduino IDE and check that it has correctly recognised the library.

Dig deeper

The Variety of Jobs Available in Libraries

What Types of Jobs Are Available in Libraries?

Library workers perform many different tasks in order to keep the library running smoothly. These individuals are often the first point of contact for patrons who visit libraries and may be responsible for ensuring that library policies are followed.

Some of these library jobs also include responsibilities such as creating programs, managing budgets, and training library assistants. Depending on their job description, some may also work in public relations.

Working in Silence

Libraries are supposed to be bastions of democracy and liberal ideas, but they’re also conservative and resistant to change. This adherence to tradition and status quo can lead to burnout among librarians. Moreover, librarians often feel underpaid for their work and are forced to take on multiple part-time jobs just to make ends meet.

Archivists are responsible for cataloguing and preserving historical information. They usually work at library locations that have a large collection of older books or parchment. They may work in a separate area of the library to avoid distractions from patrons.

This type of work environment contributes to low morale and stress levels. This is why it’s important to provide a more positive workplace culture and better rewards for library employees. In addition to salaries, there should be a clear path for advancement and opportunities to grow professionally. This will help prevent library workers from feeling stagnant in their current position and looking elsewhere for a job.

A High Paying Career

Depending on the size of the library, librarians can earn a great salary. In fact, the BLS reports that librarians who work at universities or colleges make up the highest paying group in library jobs. This is because these institutions often have bigger budgets and offer a wide variety of specialized services.

Regardless of the type of library job, it is important to be comfortable working with people. Most library positions require consistent interaction with guests and may involve educating them on technology or offering book recommendations. Additionally, most libraries provide their employees with a clear path to earning additional salaries through upfront pay scales and title changes.

Ultimately, the pay of librarians can be very competitive and will help to offset the cost of living in the area. This can be especially helpful for individuals who have children or need to care for their aging parents. In addition, librarians rarely work in a physically demanding environment, which can be a good option for those with a weaker body or physical limitations.

The Ability to Create Various Programs

Libraries provide the practical information that people need in a complex society. They help them find resources to make decisions about health, education, jobs, computers and the environment. But they also offer the less tangible things that nurture the spirit, such as programs in art and poetry.

Often, library staff is expected to work collaboratively with other departments to develop and present public programs. This can be done through partnerships with local organizations, educational and cultural institutions or individuals. Some programs may feature professional performers or presenters whose origin, background or views might raise issues of controversy.

The ability to categorize types of library public programs based on intended outcomes can help librarians better understand and meet the needs of their communities. This research can also encourage them to avoid planning “cookie-cutter” programs that lack a clear purpose and audience. Click the Full Document button to see a framework for understanding types of library programming.

Working in a Community

Many different kinds of jobs can be found in libraries. Some jobs involve more interaction with patrons than others. Library managers are responsible for the operation of a department or library branch and often manage budgets and train employees. Library assistants organize shelves, answer phone calls and help patrons find books and other materials.

Library computer support staff assist with online services. They monitor and troubleshoot issues with the database, website and Internet access. They may also teach public classes on how to use these resources.

ALA’s Jackson says he’s seen more opportunities for libraries since the pandemic, but that the “emerging work of libraries has a direct impact on the larger community.” He believes it’s important to have a broad range of skills to be successful in a library setting, such as social work, teaching and communication. And he notes that it’s vital to keep up with the changing technology and digital information systems in the library field.

Embark on more reading