4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0
2 layers307.6 × 118.8 mm
Speedo
cozykeys/speedo19A 66-key ergonomic mechanical keyboard
- Size
- 307.6 × 118.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 167
- Nets
- 105
- Pads
- 563
- Tracks, vias
- 790, 55
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 16 Feb 2018
- Updated
- 24 Oct 2020
Overview
Speedo is an open-source printed circuit board by cozykeys, from the cozykeys/speedo repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 307.6 × 118.8 mm with 167 parts on 105 nets, routed with 790 tracks and 55 vias.
It is built around the WS2812B. Its parts include 66 diodes, 66 switches, 12 capacitors, 12 inductors and 1 IC. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdCozyKeys Speedo
This repository contains the design files for the CozyKeys Speedo keyboard. The Speedo is a 66-key ergonomic mechanical keyboard heavily inspired by the Atreus/Atreus62.
Features
- Powered by an Elite-C microcontroller
- Runs QMK firmware
- Compact ergonomic layout
- Supports underglow via 12 WS2812b RGB LEDs
- Low profile (Switches mounted ~13mm from surface keyboard sits on)
- Case/PCB design files free and open source
Build Guide
A build guide and parts list are provided at ./build_guide.md.
Details
Firmware
The Speedo runs the popular open source QMK firmware:
https://github.com/qmk/qmk_firmware/tree/master/keyboards/speedo
Default Layout
Default Layer
Function Layer
Case
The case is comprised of 4 layers:
- Top (3mm)
- Switch (4.5mm)
- Middle (4.5mm)
- Bottom (3mm)
Top
Switch
Middle
Bottom
PCB
Artwork provided by Racknar Teyssier!
Release Notes
v3.0
After working on other keyboard projects for quite some time, I revisited the Speedo with a number of changes:
- Removed the curved thumb key clusters
- Changed the center key layout to add some more space between the left and right sides
- Designed a PCB that uses the Elite-C microcontroller with support for 12 WS2812b RGB LEDs
- Designed a new case to support the updated layout
- Changed versioning scheme to make more sense
rev2
The second version fixed the thumb clusters. I had yet to get into PCB design so this was only ever made via hand-wiring.
rev1
The first version of the keyboard didn't account for the diameter of standard keycaps and resulted in a case with faulty thumb
Parts
167| Qty | Value | Footprint | References |
|---|---|---|---|
| 66 | D_Small | Diode_SMD:D_SOD-123F | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +50 |
| 66 | MX | cozy-parts:MX_1.00u | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +50 |
| 12 | C_Small | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12 |
| 12 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12 |
| 2 | qmk-badge | G3, G4 | |
| 2 | LOGO | cozykeys-graphic-speedo | G7, G8 |
| 2 | LOGO | dumplings-small | G9, G10 |
| 2 | LOGO | speedo-attribution-small | G5, G6 |
| 2 | LOGO | oshw-logo-small | G1, G2 |
| 1 | Elite-C | Keebio-Parts:Elite-C | U1 |
Questions
How big is the Speedo PCB?
It measures 307.6 × 118.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Speedo use?
167 parts, built around the WS2812B. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Speedo KiCad files?
From the cozykeys/speedo repository on GitHub, at the commit this page was made from: the board is pcb/speedo.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Speedo design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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