Small size is very suitable for DIY40P MICROBIT horizontal socket compact socketUSB: 5V1A supply meets the requirements of driving force.Support 3V-5V sensor moduleComes with buzzer (switch) supply mode: USB 5V 1AOn-board functions:5V1A -recovery fuseBuzzer (PO interface)3.5mm audio port (P0 interface)Toggle switch (used to switch buzzer music output and audio port sound output.USB switch gold , which are seamlessly butted with the 0, 1, 2, 3V and GND pins of microbit to the gold of microbit. 5V and 3.3V interfaces, and support 3-5V sensor modules (onboard 5V and 3.3V indicators).Include pins 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 19, 20.Simulated feet: 0, 1, 2Type: Microbit expansion boardUsage: :bit horizontal adapter for elementary and secondary schoolsProduct description: It supports Scratch Python programming and 3-5V sensor module.Application field: Internet of Things IoTcolor:BlackMaterial:PCBsize:57 x 37mmPackage Contents:1 x Expansion BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.