Ferris Sweep Wireless: a tiny split keyboard built for Bluetooth use

Ferris Sweep Wireless: How I Built a Bluetooth Split (and Why It’s Worth It)

Ferris Sweep Wireless — the title says it all. In this post I’ll share my experience building this tiny keyboard in a wireless version. First things first: I have to thank Mr. Robert — without him this build would not have happened. Mr. Robert, thank you! :) Ferris Sweep Wireless To turn a Ferris Sweep into a wireless keyboard, we need three changes compared to the wired build: Replace the Arduino Pro Micro with a controller that supports Bluetooth Integrate a battery to power the controller Install firmware that supports a Bluetooth workflow Let’s go through each point. ...

December 29, 2025 · 4 min · 752 words · Bartosz Pater
Ferris Sweep split keyboard after build: compact 34-key low-profile ergonomic keyboard

Ferris Sweep Build Log: Parts, Soldering, QMK Flashing, and Assembly

As I’ve been building more ergonomic keyboards, I kept getting the same question: “How exactly are your keyboards built?” This post is my answer - a Ferris Sweep build log. I’ll show the process step by step so you can understand what goes into the build and what to watch out for. This build log is based on a Ferris Sweep Compact build — my “take to the office” keyboard: tiny, split, low‑profile, and easy to throw into a backpack. ...

December 15, 2025 · 4 min · 763 words · Bartosz Pater
Ferris Sweep keyboard in use with relaxed wrist posture

Ferris Sweep EKI Review: How the 34-Key Minimalist Scores on Ergonomics

Ferris Sweep Reviewed by EKI (Ergonomic Keyboard Index) This is an extended follow-up to my earlier Ferris Sweep reviews: 30% Keyboard Club – Ferris Sweep Review 34 Keys as a Daily Driver for Developers Those posts focused on hands-on impressions and my developer layout. Since then, I introduced the Ergonomic Keyboard Index (EKI) — a 0–20 scoring framework that lets us compare keyboards at a glance. In this article I apply the EKI to the Ferris Sweep to produce a concise, comparable score. Consider it an “extended review” aligned with the new scoring rules. You can visit EKI to comparison of Ergonomic Keyboard Index all reviewed by me keyboards. ...

November 20, 2025 · 3 min · 536 words · Bartosz Pater
Let’s Split keyboard with minimal acrylic case, beginner‑friendly ergonomic keyboard

Best Ergonomic Keyboard for Beginners: Choose Your First Ergonomic Keyboard

Choosing your first ergonomic keyboard is an important step. The right choice can make your work more enjoyable and productive; the wrong one can discourage you from continuing. This guide explains what truly matters, shows how to evaluate options, and recommends beginner‑friendly keyboards that balance comfort with familiarity. Is There a Perfect Ergonomic Keyboard? Short answer: no. There’s no universal ergonomic keyboard that fits everyone. Generally, the more ergonomic a keyboard is, the more it departs from the traditional layout—and the higher the learning curve. Conversely, keyboards that closely resemble standard ones are easier to switch to, but the comfort gains are usually smaller. ...

October 23, 2025 · 4 min · 723 words · Bartosz Pater
Ergonomic Keyboard Index

Ergonomic Keyboard Index (EKI) – Measuring Keyboard Ergonomics at a Glance

When exploring ergonomic keyboards, one of the hardest parts is figuring out how good a keyboard really is. Some boards are split, some are columnar, some are portable - but until now, there hasn’t been a simple way to capture all of those features in a single score. That’s why I created the Ergonomic Keyboard Index (EKI): a clear, 20-point scale that measures how ergonomic, practical, and buildable a keyboard is. Instead of long spec sheets or scattered impressions, the EKI gives you a single number that shows at a glance how well a keyboard supports comfort and usability. ...

October 6, 2025 · 3 min · 479 words · Bartosz Pater