This expansion board supports the for Microbit mainboard and is compatible with the control board. It supports USB power supply and battery box power supply, and has its own power switch.
The lower left corner of the expansion board is the motor interface of M1 and M2. There are 11 alligator clip interfaces at the top and bottom, of which the bottom one is the Microbit mainboard alligator clip interface, and the upper alligator clip interface of the control board is also compatible with the bottom one.
USB power supply port (5V)
Battery box power supply port (5V-9V)
Power switch

UART protocol port
11C protocol port
Anti-slip socket seat
Motor driver chip
M1 motor interface (P8 and P10)
M2 motor interface (P9 and P15)
Lead out all 10 ports, expand multiple 3.3V and GND ports to facilitate power supply for multiple modules
The motherboard for Microbit alligator clip interface is compatible with the control board
Alligator clip interface for control panel
Positioning holes
Colour:Black
Material:PCB
Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use.

Package Contents:
1 x Expansion Board