The 3PIN interface is distinguished by yellow, red, and black.
Includes 1A self-recovery fuse
Custom-designed silk screen board
1. Power indicator Powered on the Microbit, the indicator light will be red, no power it won’t light up.
2.P0 buzzer jump cap The jumper cap IObit is plugged in by default. In the Makecode, you can use the music column to program, and make a sound. Usually, there is no sound when you power on.
3.3Pin IO port leads All the pins in the Microbit have been taken out without any reservation (PS: there is no P17 and P18 on the Microbit, not the IObit is not taken out)
5. Board mounting holes and fixing holes The outermost two holes are approximately 4.8 mm in diameter and are compatible with Lego friction pins with a spacing of 48 mm. The innermost two holes are about 3.1mm in diameter and can be tightened with ordinary M3 screws. The spacing is about 32mm.