Features: Empowers your electronics projects with the Mainboard, featuring the powerful ATmega32U4 microcontroller for complex input/output handling and plug and play USB connectivity. This versatile STEM education set includes USB cable and alligators clips for instantly connectivity to everyday objects like fruits or aluminum foil, compatible for Scratch programming platforms. Ideal for students aged 8+, educators conducting hands on STEM workshops, and makers creating interactive installations without coding expertise. Transform classrooms into innovation labs or home environments into creative spaces by developing customs controllers for games, music interfaces, and smart home prototypes. The module design with premium PCB construction and multiple input option bridges theoretical electronics concepts with tangible creative applications across various skill levels. Specifications: Component: PCB, Metal Motherboard Size:Approx.48x94mm/1.88x3.7inch Input voltages: DC5V Miniature USB function: Power supply and data transmission Main Control IC: ATMEGA32U4 Applicable scenario:Educational field Option Type:1set Main Control Board,1pc Main Control Board; Package Includes: Package A 1pc Main Control Board Package A 1Set Main Control Board note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.