Stepdown 5V to 3.3V module

Yep that looks right. You might want to look over the tutorials listed in this thread yesterday:

You also may want to add connectorxterminal to breadboard view (much the same as schematic and for the same reason, so the pin connects at the edge of the connector rather than the center of the pin as it does with only the pin defined). Feel free to post here if you have questions or need help because we need more people making good parts to help Fritzing grow and a variety of us will provide help.

Peter