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2 layers68.6 × 43.2 mmKeyboard, the printed circuit board in 3D

This Git project contains everything that is needed for the construction of split 60 % keyboard. The layout used is a custom one (see layout) base on international qwerty. The project include:

Size
68.6 × 43.2 mm
Copper layers
2
Thickness
1.6 mm
Parts
24
Nets
43
Pads
117
Tracks, vias
191, 23
Pours
2
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
14 Apr 2023
Updated
10 May 2023

Overview

Keyboard is an open-source printed circuit board by Gflinois, from the Gflinois/split-keyboard repository on GitHub, published under the MIT licence. It is a 2-layer board of 68.6 × 43.2 mm with 24 parts on 43 nets, routed with 191 tracks and 23 vias.

It is built around the ATMEGA32U4. Its parts include 8 capacitors, 5 switches, 4 resistors, 4 diodes and 1 IC. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.

Main components

1

README

README.md

Split-keyboard

This Git project contains everything that is needed for the construction of split 60 % keyboard. The layout used is a custom one (see layout) base on international qwerty. The project include:

  • pcb files of a proof of concept with 4 switches
  • pcb files of each of the keyboard sides
  • a shopping list for all needed components
  • cad, stl and gcode for the case files (gcode for an ender 3 with a probe)
  • cad, stl and gcode for the keycaps (gcode for an anycubic proton)
  • the driver module to use it on linux
  • the driver module to use it on windows

Layout

big L mec

Electronic specifiactions

This keyboard is a usb-c teather based one (no battey nor wireless connection provided yet). It is powered by an Atmega 328P stolen on an old arduino nano.

Contribution

Contributions to this Git project are welcome! Please submit pull requests to the dev branch and include a detailed description of your changes.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Parts

24
QtyValueFootprintReferences
50.1uCapacitor_SMD:C_0805_2012MetricC3, C4, C5, C6, C8
4Dkeyboard_parts:D_SOD123_axialD1, D2, D3, D4
4KEYSWButton_Switch_Keyboard:SW_Matias_1.00uK1, K2, K3, K4
210kResistor_SMD:R_0805_2012MetricR1, R2
222Resistor_SMD:R_0805_2012MetricR3, R4
222pCapacitor_SMD:C_0805_2012MetricC1, C2
14.7uCapacitor_SMD:C_0805_2012MetricC7
1ATMEGA32U4Package_QFP:TQFP-44_10x10mm_P0.8mmU1
1SW_PUSHButton_Switch_SMD:SW_SPST_TL3342SW1
1USB_mini_micro_Bkeyboard_parts:USB_miniB_hirose_5S8J1
1XTAL_GNDCrystal:Crystal_SMD_SeikoEpson_TSX3225-4Pin_3.2x2.5mm_HandSolderingX1

Questions

How big is the Keyboard PCB?

It measures 68.6 × 43.2 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Keyboard use?

24 parts, built around the ATMEGA32U4. 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 Keyboard KiCad files?

From the Gflinois/split-keyboard repository on GitHub, at the commit this page was made from: the board is version-bébé/keyboard.kicad_pcb and its schematic keyboard2_ctrl (copy)/keyboard2_ctrl.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Keyboard design in my own project?

Its repository publishes it under the MIT 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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