Features 1、COMPACT DESIGN: The for micro:bit B type expansion board is specially designed to facilitate the wiring of for micro:bit development boards, effectively simplifying the development process and enhancing development efficiency. 2、RICH INTERFACES: The expansion board is equipped with 3.5mm sound sockets and micro USB female sockets, which makes it easier to connect various devices and modules, and improves the versatility and expandability of the product. 3、FLEXIBLE VOLTAGE CONTROL: The product's operating voltage is DC 3.3~5.5V, and users are also able to control the voltage on the board through jumper covers to meet different power requirements. 4、EXPANDED FUNCTION PINS: The expansion board separates the function pins of the for micro:bit motherboard in the form of connectors, making the function of each pin clearer and more convenient to use. 5、MICRO USB POWER SUPPLY: Power can be supplied through the micro USB holder on the expansion board, which not only makes the wiring more neat and tidy, but also facilitates users to supply power to the for micro:bit B type expansion board at any time in different environments. Specification Item Type: for Microbit B Type Expansion Board Material: PCB Working Voltage: DC 3.3~5.5V Voltage Control: Voltage Can Be Controlled on the Board Through Jumper Covers Power Supply: Power Can Be Supplied Through the Micro USB Holder on the Board Package List 1 x for Microbit B Type Expansion Board