Once you've got your Feather board up and running you probably want to have some custom circuiry attached. Of course, you can start with a breadboard setup and that will work just fine for prototyping. But, once you know what you want, a proto feather can keep the components compact and secure.

We have three options for prototyping, all are "FeatherWings" - add on boards that can be plugged right into any Feather.

FeatherWing Proto

First is the FeatherWing Proto - a prototyping add-on for all Feather boards. Using our Feather Stacking Headers or Feather Female Headers you can connect a FeatherWing on top or bottom of your Feather board.

This has a duplicate breakout for each pin on a Feather, as well as a bunch of plain grid proto holes. For GND and 3.3V, we give you a strip of connected pads. There's plenty of room for buttons, indicator LEDs, or anything for your portable project. The FeatherWing Proto makes an ideal partner for any of our Feather boards.

FeatherWing Doubler

If you need even more space, or maybe you want to have two wings plugged in at once, you can double your prototyping space with a FeatherWing Doubler. Using our Feather Stacking Headers or Feather Female Headers you can connect a FeatherWing on top or bottom of your Feather board. 

This design also has duplicate breakout for each pin on a Feather, as well as a bunch of plain grid proto holes. For GND and 3.3V, we give you a strip of connected pads. The I/O pins are 'connected through' between the two sides with skinny 10mil thick traces that pass through the 0.1" grid holes so you can plug a Feather into one side and you get a fully connected set of headers on the other side

FeatherWing Tripler

Need MOAR space? Get 50% more than a Doubler with the Tripler!

This is similar to our FeatherWing Proto except there are three! The magic of the Tripler comes when you want to connect your Feather to two other Feather Wings without needing any stacking headers!

This design also has duplicate breakouts for each pin on a Feather, as well as a bunch of plain grid proto holes. For GND and 3.3V, we give you a strip of connected pads. The I/O pins are 'connected through' between the two sides with skinny 10mil thick traces that pass through the 0.1" grid holes so you can plug a Feather into one side and you get two fully connected sets of headers on the other side