Product information "FeatherWing Doubler - Prototyping Add-on For All Feather Boards"
This is the FeatherWing Doubler - a prototyping add-on and more for all Feather boards. This is similar to our FeatherWing Proto except there are two! The magic of the Doubler comes when stacking a Feather and another board on top of the Doubler so you can work with both boards simultaneously side-by-side! In addition to the board the Doubler comes with:
1 Doubler PCB
1 set Feather Stacking Headers (you can cut these down after soldering so they aren't stacking-style if you want a slimmer build)
1 set Feather Female Headers
The Doubler, like the Proto, has a duplicate breakout for each pin on a Feather, as well as a bunch of plain grid proto holes. Also, the two sets of pins are cross connected and for GND and 3.3V, we give you a full strip of connected pads.
PCB Dimensions: 50.9mm x 47mm x 1.6mm / 2" x 1.85" x 0.06"
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