The Adafruit FeatherWing Doubler lets you stack and use two FeatherWings side-by-side, with full pin breakouts and prototyping space for custom additions.
The Adafruit FeatherWing Doubler is a handy prototyping add-on for all Feather boards, similar to the FeatherWing Proto — but with two full sets of Feather connections side-by-side. The real advantage comes when you stack your Feather and another FeatherWing onto the Doubler, allowing both boards to sit next to each other and operate simultaneously. It’s ideal when you need access to two FeatherWings at once without sacrificing pins or flexibility.
The Doubler includes one Doubler PCB, one set of Feather stacking headers (which can be trimmed after soldering if you prefer a slimmer, non-stacking build), and one set of Feather female headers. Like the Proto, it provides a duplicate breakout for every Feather pin along with a generous grid of prototyping holes. The two sets of pins are cross-connected, and for GND and 3.3V there’s a full strip of connected pads for easy power distribution.
The Doubler comes as a small kit, so you’ll need to solder the female headers and/or stacking headers in the configuration that suits your build.
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