We feel bad when we see a retrocomputer project and think, “Hey! That’s not that old.” But, usually, when we think about it, it really is. Take the Penkesu. It looks like one of the little organizer computers that were popular — ok — a long time ago.
Inside is a Raspberry Pi Zero 2W, a 7.9 inch 400×1280 screen and a 48-key mechanical keyboard. Unsurprisingly, the case is mostly 3D printed, but it does use Gameboy Advance SP hinges.
There are only a few components inside which is understandable since there isn’t much room. In addition to the Pi, the keys, and the screen, there is a battery, a power controller, some diodes, and an Arduino which controls the keyboard.
This is another great example of a project that looks great but would have been hard to duplicate without 3D printing. The compact computing power available these days doesn’t hurt either.
It doesn’t look like this would cost much to duplicate and it probably performs better than the computers it emulates. The wiring isn’t very difficult because, honestly, there are not many components to wire together.