The aim was to 3D print the top as a very thin part so ... Thus, an upgrade came in the form of an Adafruit Feather microcontroller and a 2,000 mAh lithium-polymer battery tucked inside the ...
Adafruit’s PropMaker Feather is a microcontroller board designed ... It’s placed in a case assembled from laser-cut acrylic, with a neat inkjet-printed label on top. Where previously, sound ...