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2 layers159.2 × 104.5 mmCornia, the printed circuit board in 3D

Cornia is a split keyboard with 3x6 column strongly staggered keys and 3 thumb keys

Size
159.2 × 104.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
78
Nets
59
Pads
883
Tracks, vias
961, 482
Pours
66
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
23 Apr 2024
Updated
29 Sep 2024

Overview

Cornia is an open-source printed circuit board by Vaarai, from the Vaarai/Cornia repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 159.2 × 104.5 mm with 78 parts on 59 nets, routed with 961 tracks and 482 vias.

It is built around the SK6812MINI-E. Its parts include 21 switches, 21 inductors, 6 resistors, 2 ICs and 1 capacitor. It belongs with the keyboards and input boards and the RP2040 and AVR (ATmega, ATtiny) boards of this library.

Main components

1

README

PCB/README.md

Cornia KiCad project overview

This KiCad project is designed for the Cornia keyboard PCB

KiCad files Descriptions

  • cornia.kicad_pro: This is the main project file for KiCad. It contains general information about the project, such as library paths, and links to schematic and PCB files.
  • cornia.sch: This file defines the circuit diagram and component connections.
  • cornia.kicad_pcb: This file contains the PCB layout, including component placement, routing, and layer definitions.
  • cornia.kicad_sym: This file defines the symbol for a custom component used in the schematics.
  • cornia.kicad_mod: This file defines the footprint for a custom component used in the PCB layout.
  • cornia.pdf: This file contains any relevant documentation or information about the project.

Usage

  • Open the project: Launch KiCad and open cornia.kicad_pro file.
  • View schematics: Open schematic file from the project view.
  • Inspect PCB layout: Open PCB layout file from the project view.
  • Modify as needed: Make any necessary changes to the schematics and/or PCB layout.
  • Generate Gerber files: If you're ready to manufacture the PCB, generate the Gerber files from the PCB layout.

Parts

78
QtyValueFootprintReferences
21SK6812MINIcornia-footprints:YS-SK6812MINI-EL1, L2, L3, L4, L10, L11, L12, L13, L14, L15, L16, L17, L18, L19, L20, L21 +5
21SW_Pushcornia-footprints:keyswitch_cherrymx_hotswap_reversible_1uSW1, SW2, SW3, SW4, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21 +5
10Holecornia-footprints:MountingHole_2.2mm_M2_no_annularH1, H2, H3, H4, H5, H6, H7, H8, H9, H10
8SBcornia-footprints:SolderJumper-2_Open_NoSilkSB4, SB5, SB6, SB7, SB8, SB9, SB10, SB11
62.2kcornia-footprints:R_0805R1, R2, R3, R4, R5, R6
2SBcornia-footprints:SolderJumper-2_BridgedSB1, SB3
2SW_RSTcornia-footprints:SW_SMD_4x4mmRST_L1, RST_R1
2SolderJumper_3_Opencornia-footprints:SolderJumper-3_I2CSB12, SB13
11uFcornia-footprints:C_0805C1
1Conn_01x01_Pincornia-footprints:1PinJ1
1OLEDcornia-footprints:OLEDOL1
1RP2040-ProMicrocornia-footprints:RP2040-ProMicroU1
1SBcornia-footprints:SolderJumper-2_OpenSB2
1TRRScornia-footprints:TRRS_PJ-320AU2

Questions

How big is the Cornia PCB?

It measures 159.2 × 104.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Cornia use?

78 parts, built around the SK6812MINI-E. 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 Cornia KiCad files?

From the Vaarai/Cornia repository on GitHub, at the commit this page was made from: the board is PCB/cornia.kicad_pcb and its schematic PCB/cornia.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Cornia design in my own project?

Its repository publishes it under the GPL-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).

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