Building a split mechanical keyboard with a Raspberry Pi Zero controller

Looking to build their own ergonomic mechanical split keyboard, Gosse Adema turned to the Raspberry Pi Zero W for help.

So long, dear friend

Gosse has been happily using a Microsoft Natural Elite keyboard for years. You know the sort, they look like this:

Twenty years down the line, the keyboard has seen better days and, when looking for a replacement, Gosse decided to make their own.

This is my the first mechanical keyboard project. And this will be for daily usage. Although the possibilities are almost endless, I limit myself to the basic functionality: An ergonomic keyboard with mouse functions.

Starting from scratch

While searching for new switched, Gosse came across a low-profile Cherry MX that would allow for a thinner keyboard. And what’s the best device to use when trying to keep the profile of your project as thin as possible? Well, hello there, Raspberry Pi Zero W, aren’t you looking rather svelte today.

After deciding to use a Raspberry Pi as the keyboard controller over other common devices, Gosse took inspiration from an Adafruit tutorial on turning Raspberry Pi into a USB gadget, and from “the usbarmory Github page of Chris Kuethe”, which describes how to create a USB gadget with a keyboard.

Build your own

There is a lot *A LOT* of information on how Gosse built the keyboard on Instructables and, if we try to go into any detail here, our word count is going to be in the thousands. So, let’s just say this: the project uses some 3D printing, some Python code, and some ingenuity to create a lovely-looking final keyboard. If you want to make your own, Gosse has provided absolutely all the information you need to do so. So check it out, and be sure to give Gosse some love via the comments section on Instructables.

Mechanical keyboards

Also, if you’re unsure of how a mechanical keyboard differs from other keyboards, we made this handy video for you all!

How do mechanical keyboards work?

So, what makes a mechanical keyboard ‘mechanical’? And why are some mechanical keyboards more ‘clicky’ than others? Custom PC’s Edward Chester explains all. …

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