The Expansion Board is a powerful Bit accessory that connects to 19 pins on the Bit board, expanding its functionality for your projects. Each signal pin has a matching ground connection, and three independently configurable pins can be set to either 3.3V or 5V, enabling flexible and safe wiring for mixed voltage peripherals. Designed for students, educators, makers, and programming enthusiasts, it enhances hands on skills and coding capabilities. Ideal for classroom teaching, maker spaces, and labs, this expansion board supports innovative projects such as home automation, environmental sensing, and control systems. Key benefits and attributes Function: expands available I O and power options with per pin voltage selection Compatibility: attaches to the Bit board via 19 pins Size: compact form factor suitable for standard Bit board setups Material and build: robust PCB construction for reliable operation Performance: independent voltage selection per pin enables flexible and safe wiring for multiple peripherals Use scenarios Classroom experiments: students connect sensors and actuators to the expansion board and run control programs Home automation prototypes: connect sensors and relays to build a simple smart home controller Robotics projects: power and read data from multiple modules with different voltage requirements