max90069:
i think the placement of transistors is confusing me.
There are no transistors on that diagram.
jremington:
How is power supposed to get from the top to the bottom of the breadboard?
Well, with the short it won't but looking past that the top power bus on the breadboard is 9 V, which is used to power the Uno, which provides 3.3 V to the bottom power bus on the breadboard. Of course that would be more obvious with a schematic. This assumes max90069 isn't using one of the breadboards with the break in the buses halfway across but the breadboard in the fritzy is not of that type since the red and blue lines are continuous.