Cloud Plan B.

Got all but 4 motors not attached.

Found this link to a prebuilt Adafruit motor sheild for Ardunio.

Can run 4 bidirectiona DC motors. That is one per row or one per two rows if we can put the same voltage across two motors ( assuming current it is OK). So need 6 of these or possibly three if luck ( we never are).

Now wondering what to do with 22 DC motors...