Micro:bit Driver Expansion Board not getting power

Hi!

This expansion board supports 3.5V to 5.5V power supply. It provides a DC 2.1 plug and a wiring terminal which can be connected directly to three dry battery boxes. It comes with a USB to DC 2.1 adapter cable, which can be powered by power bank and is more economical and environment-friendly.

When you turn on the switch on the Driver Expansion Board, the power indicator will light up.

What board do you use? You can power the Driver Expansion Board and micro bit from a battery or other external power.  If it is used with UNIHIKER, please provide additional power to the USB of UNIHIKER. The Driver Expansion Board cannot power the UNIHIKER through the slot. 

Maybe a faulty board. Did dfrobot contact you in this regard?

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