Last year, I attended the Gathering for Open Science Hardware (GOSH) in Panama, which was an awesome experience! One of the event's highlights was facilitating an Art & Science unconference session where I explained how PCBs are designed and how each layer could be used to create art. The session turned out really well, especially since we didn't use any laptops, just some sticky notes, each color representing a layer of a PCB, but I was amazed at how creative everyone got with their paper PCBs!
Another cool thing about last year's gathering is how everything was ñeque-themed! Ñeques, as they are called in Panama, or agoutis in English, are these cute rodents widely spread in Central America, with heart-shaped ears! If you love these as much as I do, head to Digital Naturalism Laboratories (dinalab) for more ñeque content!
So of course I had to create a open-source contribution aligned with the theme of the event: a tiny ñeque PCB with color-changing heart ears.
The circuit schematic is based on the good old 555 timer and some reverse-mounted LEDs, a blinky RGB one for the ear, and one for the tiny nut the ñeque is holding.
If you wanna build one for yourself, the KiCAD files are available here.Have an idea for a similar project?
⚡Check out our other projects as well!