PocketBeagles, unless you’re referring to the adorable hound they are apparently named after, are single-board computers the size of a key fob, featuring half a gig of RAM and a one gigahertz processor. While we sometimes look past just how amazing systems like this are, if you grew up in the 1980s and 90s, you probably remember power like this at one point being mind-blowing in a full-sized computer.
Nonetheless, boards like this and their kind are now quite common, and hacker Microwavemont has come up with an addition that makes the PocketBeagle even more exciting—an extension board that adds 2 or 4 USB ports, as well as a fingernail-sized 64×32 pixel OLED display controlled via an I2C interface. The device plugs in on top of the base board as a “cape” and allows you to plug in all manner of accessories into it, and view what’s going on via its shockingly small display. Be sure to check out how great the display looks in the video below:
If you like this idea, but don’t need an OLED display, he does offer a version without it. On the other hand, the price difference between the two models is only $4, so adding a little screen would be tough to pass up!