Install the Required Libraries

What is a Library?

A library is a collection of predefined functions and headers that make programming easier and more efficient. Libraries typically consist of two main files:

  • .h (Header File): Contains function declarations, macro definitions, and constructor definitions.

  • .cpp (Source File): Includes function implementations, variable definitions, and other executable components.

By including a library in your project, you can directly call the functions it provides (e.g., #include <dht.h>) instead of writing your own definitions from scratch. This keeps your code concise and easier to read.

While it’s possible to write the function definitions yourself, using a library saves time and reduces complexity.

Some libraries are pre-installed with the Arduino IDE, while others need to be installed manually. Here’s how to install the required libraries for this project.

How to Install a Library

Note

The following instructions are for Arduino IDE 2.0. If you are using Arduino IDE 1.x, refer to Installing Libraries.

Here are steps to install a library:

  1. Click on the Library Manager icon in the left column of the Arduino IDE.

    ../_images/ar_libr_manager.jpg

  2. Search for the library:

    • A list of available libraries will appear. Use the search bar to find the library you want to install.

    • For example, to install the SoftPWM library, type the library name and click the INSTALL button.

    ../_images/ar_softpwm.png

  3. The installation process usually takes less than a minute. Once completed, the library will display INSTALLED in the Library Manager.

    ../_images/ar_install_success.png

  4. Follow the same steps as above to install the IRLremote Library, ensuring you spell the library name correctly.

    ../_images/ar_irlremote.png

  5. Then, install the ArduinoJson library.

    ../_images/ar_arduinojson.png

  6. Search for and install the SunFounder AI Camera library, the final library needed for this project.

    ../_images/ar_aicamera.png

By following these steps, you’ll have all the necessary libraries installed and ready to use for your project.