What is a Breakboard with Headers

Breakboard with Headers

PIN Configuration (top down)

Located at: https://learn.sparkfun.com/tutorials/microbit-breakout-board-hookup-guide/all

Power Pin

The pin listed as 3V3 can be used as an input (regulated 3.3V, do not exceed 3.6V!) or an output if you plug a battery pack or USB into the micro:bit.

How to Attach to the Breadboard

It should SNAP into place and be fairly secure if you wiggle just the micro:bit.