Lego Motor Arduino Interface

Step 3 Use it!

Plug the bricks topside into the bottom of a power brick, and insert stripped stranded wire into the screw terminals. Insert the screw terminals into your Motor Shield, or other motor control unit. You can also use the brick to get external power from the Lego battery pack in the same fashion.

This method prevents you from cutting wires that are to precious to cut, or damaging bricks that you only have a few of.

Enjoy!