2 layers102.4 × 211.3 mm
Haxophone001
cardonabits/haxo-hw
Haxophone, an electronic musical instrument that resembles a saxophone
92 parts674
2 layers228.6 × 117.8 mm
Gigas
ctranstrum/patagona1Patagona Wireless Keyboards
- Size
- 228.6 × 117.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 92
- Nets
- 54
- Pads
- 510
- Tracks, vias
- 427, 27
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 May 2026
- Updated
- 31 Jul 2026
Overview
Gigas is an open-source printed circuit board by ctranstrum, from the ctranstrum/patagona repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 228.6 × 117.8 mm with 92 parts on 54 nets, routed with 427 tracks and 27 vias.
It belongs with the keyboards and input boards of this library.
README
README.md
Patagona Keyboards
Compact wireless ergo keyboards built around the XIAO BLE microcontroller and running ZMK firmware with full ZMK Studio support. Named after the two species of giant hummingbird — the largest hummingbirds in the world.
Features
- Wireless — internal LiPo battery; no cables required day to day
- Live remapping — ZMK Studio lets you customize your keymap over USB without recompiling firmware
- Hotswap — Kailh Choc sockets support both v1 and v2 switches; swap anytime
- 3D-printed case — printable at home on any FDM printer, with split versions for smaller beds
- Open hardware — all source files included, licensed under CERN-OHL-P-2.0
Patagona gigas
30–32 keys with a five-way joystick switch at the center, within reach of either thumb for scroll, navigation, or mouse control.
Build guide · Printable case files · Firmware
Patagona chaski
40–42 keys for those who want the 3x6 layout and more thumb keys.
Build guide · Printable case files · Firmware
Heritage
The Patagona genus is home to the two largest hummingbirds in the world. P. gigas is the migratory giant, ascending over 4,000 meters and traveling more than 4,000 km each way between the Chilean coast and the Peruvian Andes each year. P. chaski is its slightly larger but sedentary cousin.
These keyboards follow in the tradition of the original Hummingbird design, which used a XIAO SAMD21 and topped out at 30 keys due to the maximum capacity of the 5×6 matrix allowed by the 11 pins on that board. The Patagona boards use the XIAO BLE, whose NFC pads can be repurposed as GPIO — adding two extra pins, enabling a 6×7 matrix and up to 42 keys.
Parts
92| Qty | Value | Footprint | References |
|---|---|---|---|
| 37 | ComboDiode | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +21 | |
| 32 | ceoloide:switch_choc_v1_v2 | S1, S2, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21, S22, S23 +16 | |
| 9 | MountingHole_2.2mm_M2_Pad_Via | , , , , , , , , | |
| 4 | SMDPad | PAD1, PAD2, PAD3, PAD4 | |
| 3 | ScrewHole_2.2mm_M2 | , , | |
| 1 | p-gigas | PG** | |
| 1 | ceoloide:battery_connector_jst_ph_2 | JST1 | |
| 1 | pts526 | SW38 | |
| 1 | Alps_Alpine_SKRH | SKRH1 | |
| 1 | E73:SPDT_C128955 | T1 | |
| 1 | xiao-ble | MCU1 |
The 91 most common of 92 parts.
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Questions
How big is the Gigas PCB?
It measures 228.6 × 117.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Gigas use?
92 parts. 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 Gigas KiCad files?
From the ctranstrum/patagona repository on GitHub, at the commit this page was made from: the board is pcb/gigas.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Gigas design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).