Adafruit Swirly Aluminum Mounting Grid

With most of our dev boards, sensors and feathers now sporting plug-and-play stemma QT ports it can be very fast to put together projects with half a dozen boards snapped together. The aluminum is conductive both electrically and thermally - so watch out if you are using metal ...With most of our dev boards, sensors and feathers now sporting plug-and-play stemma QT ports it can be very fast to put together projects with half a dozen boards snapped together. The aluminum is conductive both electrically and thermally - so watch out if you are using metal screws to attach stuff.

Unless, that is, you want to turn the whole thing into a ground plane in which case: go for it. Each square is 0.6" x 0.6" and there's holes or slots every 0.2 inches. With the various dots and dashes you can pretty much make anything on a 0.1" grid fit.

Each drill hole is 0.1" / 2.54mm diameter, the slots are 0.11" x 0.3" (2.75 x 7.5mm) And if that's not good enough, the aluminum is easy to cut/drill/machine/bend if you need more customization.