Applicable occasions: suitable for micro:bit motherboard expansion use
Outgoing interface: PO (audio socket), P1, P2, P8, P12, P13, P14, P15, P16, P19, P20, 3.3V, GND;
Power interface: VCC on the board is powered by 3.3V or Micro USB 5P (5V), depending on the voltage required by the external module. Be careful not to choose the wrong one, otherwise it may burn the motherboard and the module.
Number of interfaces: one Micro:bit motherboard expansion slot, one 3.5 audio socket, 5/6/6 2.54-2P (red)/3P (blue)/4P (yellow) interfaces, one Micro USB 5P, 3P row Needle two.