In this folder you will find: 1. A tutorial "Elegoo_Tutorial.pdf" (Version V1.0.18.12.18) Please read and follow it. (You may want to get the latest tutorial from the Elegoo website, at http://www.elegoo.com ) 2. A folder labeled "code" which contains example programs for many of the chapters in the tutorial. To use these examples, just click on the file named for the chapter (e.g. Lesson 4 RGB LED) and your Arduino application will launch with the sample program already in it, ready to upload. Remember you may need to update the Library! 3. A folder labeled "Libraries" that contains additional libraries your Arduino software may need for certain sensors and output device applications. Chapter 1 of the tutorial explains how to use these libraries. 4. Misc FAQ files WHAT TO DO FIRST? Please download the latest Arduino IDE compatible with your computer system from the Elego website: http://www.elegoo.com/download or better still, directly from the Arduino website at: https://www.arduino.cc/en/software (NOTE, in January 2021 that would be Arduino IDE 1.8.13). Should you have any questions or problems please contact Elegoo directly at service@elegoo.com or euservice@elegoo.com Thank you for using our products! Elegoo Support Team