.. note:: Hello, welcome to the SunFounder Raspberry Pi & Arduino & ESP32 Enthusiasts Community on Facebook! Dive deeper into Raspberry Pi, Arduino, and ESP32 with fellow enthusiasts. **Why Join?** - **Expert Support**: Solve post-sale issues and technical challenges with help from our community and team. - **Learn & Share**: Exchange tips and tutorials to enhance your skills. - **Exclusive Previews**: Get early access to new product announcements and sneak peeks. - **Special Discounts**: Enjoy exclusive discounts on our newest products. - **Festive Promotions and Giveaways**: Take part in giveaways and holiday promotions. 👉 Ready to explore and create with us? Click [|link_sf_facebook|] and join today! .. _install_libraries_ar: 5.11 Install External Libraries ======================================= A library is a collection of pre-written code or functions that extend the capabilities of the Arduino IDE. Libraries provide ready-to-use code for various functionalities, allowing you to save time and effort in coding complex features. There are two main ways to install libraries: Many libraries are available directly through the Arduino **Library Manager**. You can access the **Library Manager** by following these steps: #. In the **Library Manager**, you can search for the desired library by name or browse through different categories. .. note:: In projects where library installation is required, there will be prompts indicating which libraries to install. Follow the instructions provided, such as "The ``DHT sensor library`` is used here, you can install it from the **Library Manager**." Simply install the recommended libraries as prompted. .. image:: img/install_lib3.png #. Once you find the library you want to install, click on it and then click the **Install** button. .. image:: img/install_lib2.png #. The Arduino IDE will automatically download and install the library for you. **Related Components** Below are the related components, you can click in to learn how to use them. .. toctree:: :maxdepth: 2 ar_lcd ar_ir_remote ar_dht11