The expansion board is a powerful Bit accessory that attaches to the 19-pin connections on the Bitboard and enhances the functionality of your projects. - Ideal for students, educators, makers, and coding enthusiasts who want to grow their skills and programming capabilities. - Each pin provides the corresponding VCC and GND, enabling flexible switching between 3.3V and 5V, and features three independent 3.3V/5V pins for versatile wiring options. - Compatible with the 19-pin Bitboard header, designed for classroom, lab, and workshop use. - Enables innovative projects such as home systems and other embedded applications. Use scenarios: - In the classroom to demonstrate wiring, voltage levels, and expansion capabilities. - In a makerspace or at home for quick prototyping of sensors, actuators, and small embedded systems. - In a lab to prototype home automation or other small control projects.