Grove Zero Starter Kit Designed for STEM education Comes with complete 9 color-coded modules Teaches basics of open-source electronics Helps to develop programming skills, creativity, and logical thinking Compatible with LEGO The Grove Zero Starter Kit includes 9 Grove zero modules and is designed for kids who are beginners to graphical programming and robotics. Among these modules, the light sensor, sound sensor, and twin-button module are what we call input modules; while the buzzer, RGB LED, LED matrix, and servo are categorized as output modules. Comprehensive default programs are pre-loaded in any combination of input and output modules that means, you can still explore a variety of interesting projects when snapping them together for the first time. After having a basic understanding of those modules, you can follow the Invention Guidebook to make one of the suggested projects. Particularly, 5 of the projects can be built without any help from graphical programming. You just need to decorate them with the included project sheet and they will work perfectly with the preloaded default code.