Ah, lazy sunday afternoons. Perfect opportunities for a long walk to nowhere, a drive through the countryside, or designing and prototyping small electronics. At least that is the case at Metrix Create:Space in Seattle. In this case, a complete development board based off the Adafruit Trinket sprung to life in less than four hours.
The Octotrinket was simply an exercise, an exploration of the tools available. Having an LPKF Protolaser S sitting around can lead to this kind of thing.
They started with a simplified version of the Adafruit trinket but decided they wanted to spice up the design a little bit. The through-hole headers were ditched in favor of big fat pads for prototyping since this wasn't meant to be mounted on a protoboard any time soon. The entire PCB was reduced in size and modified to allow for a USB A style connector, and finally a clip for a cR2032 battery was added to the back of the PCB.
The final result was simple and elegant. The Octotrinket may not be groundbreaking in any single way. However, it looks great and is a fantastic example of a quick but useful learning project. If you are inclined to create your own, you can find the schematic and PCB files on their site.
— Caleb Kraft, Chief Community Editor, EE Times