The kit contains more than 120 components and electronic modules, these components can be divided into about 30 species. We have carefully prepared a guidebook and supporting experimental code routine for you to learn. The guidebook includes 26 experiments. By learning this kit, you will be fully aware of the wonderful world of electronics and the fun of DIY. 1. A wide variety of electronic components - The best choice for Arduino beginners. 2. Excellent Manual - 147 pages, 27 projects, take you from the primer to the mastery. 3. Well-planned Processing lessons - Arduino interacts with the Computer. 4. Powerful technical support. 5. Arduino UNO R3 board is included.