Datasheet

Proto Pinout

The Proto Featherwing is fairly simple. It's 2.0" x 0.9" so it fits right over a feather.

Duplicated IO Pins

On the outer edge are all the pins you'd want to solder in to connect to the Feather. The inner set of pins are boxed

and have small text or dots to indicate they are connected. The above shows the outer and inner set of pins. They are

tied together so you have access to each I/O pin!