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2 layers138.1 × 98.3 mmSplitly, the printed circuit board in 3D

corne hybrid wireless keyboard based .As it consists of a left part keyboard connected to pc wired ,and right part keyboard powered by a rechargeable Battery which can operate up to week and connected to left part via…

Size
138.1 × 98.3 mm
Copper layers
2
Thickness
1.6 mm
Parts
46
Nets
48
Pads
180
Tracks, vias
318, 4
Pours
2
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
14 Jul 2026
Updated
15 Sep 2026

Overview

Splitly is an open-source printed circuit board by YoussefAymanJo, from the YoussefAymanJo/Splitly repository on GitHub. It is a 2-layer board of 138.1 × 98.3 mm with 46 parts on 48 nets, routed with 318 tracks and 4 vias.

Its parts include 21 diodes, 21 switches, 1 IC and 1 connector. It belongs with the lEDs and displays boards and the nRF52 and nRF5x boards of this library.

README

README.md

Splitly

Description

corne hybrid wireless keyboard based .As it consists of a left part keyboard connected to pc wired ,and right part keyboard powered by a rechargeable Battery which can operate up to week and connected to left part via bluetooth.And operated by nice Nano and CAT display. And a numpad with RGB colours, connected wired to pc and powered by pico rp2040 .

Why it was built

I built this,beacause i always need full split mechanical keyboard,but i need to customize it features by myself.So this keyboard it custosmized to my needings.Also,it has customized features based on usage.Splitly is not just regular keybaord but,desgined to be my companion.

How to use it / Build it

Firsly,printing all 3d models after that fabricate PCB.After that assemble mx switches,MCU and battery management of pcb.then assemble all this parts together.finally,upload firmware on nice nano and pico,the test all

Schematic

I made the schematic and keyboard matrix for the corne keyboard, then the numpad .

Left Part

Screenshot 2026-07-29 151332

Right Part

Screenshot 2026-07-29 151346

Numpad

Screenshot 2026-07-29 165054

PCB

I routed the pcb ,then i outlined the shape of 2 keboard parts and numpad .

Left Part

Screenshot 2026-07-29 140454

Right Part

Screenshot 2026-07-29 151357 ### Numpad Screenshot 2026-07-29 165110

CAD

I started sketching the plate for left & right part keyboard,the i the Enclosure , then the top cover.After that i worked on numpad plate, then enclosure and top cover,finally i redered them all.

Left Part

Screenshot 2026-07-29 144237 Screenshot 2026-07-29 144055 Screenshot 2026-07-29 175948

Right Part

Screenshot 2026-07-29 180152 Screenshot 2026-07-29 180138 Screenshot 2026-07-29 180126 Screenshot 2026-07-29 180047

Numpad

Screenshot 2026-07-29 214557 Screenshot 2026-07-29 214609 Screenshot 2026-07-29 214643 Screenshot 2026-07-29 214633

Firmware

I used kmk with CircuitPython as firmware,and made code for the left & right part which is keyboard and the numpad

Left Part

Screenshot 2026-07-29 154041 Screenshot 2026-07-29 154053 Screenshot 2026-07-29 154101 Screenshot 2026-07-29 154108

Right Part

Screenshot 2026-07-29 154227 Screenshot 2026-07-29 154236 Screenshot 2026-07-29 154240

Numpad

Screenshot 2026-07-29 184534

BOM

I made the BOM and needed materials ,in egypt then convert its price to USD dollar. Screenshot 2026-07-29 185849

Parts

46
QtyValueFootprintReferences
21~ScottoKeebs_Components:Diode_DO-35D1, D2, D3, D4, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21 +5
20SW_Push_45degScottoKeebs_MX:MX_PCB_1.00uSW1, SW2, SW3, SW4, SW5, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20 +4
2MountingHoleMountingHole:MountingHole_3.2mm_M3H1, H2
1Nice_Nano_V2ScottoKeebs_MCU:Nice_Nano_V2U1
1OLED_128x32ScottoKeebs_Components:OLED_128x32J1
1SW_Push_45degScottoKeebs_MX:MX_PCB_1.50uSW21

Questions

How big is the Splitly PCB?

It measures 138.1 × 98.3 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Splitly use?

46 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 Splitly KiCad files?

From the YoussefAymanJo/Splitly repository on GitHub, at the commit this page was made from: the board is splitly/splitly.kicad_pcb and its schematic pad/pad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Splitly design in my own project?

Its repository states no licence, so its author keeps all rights: ask YoussefAymanJo before reusing the design.

More from YoussefAymanJo/Splitly

2
  • 2 layers141 × 100.6 mmRight part, the printed circuit board in 3D

    Right part

    YoussefAymanJo/Splitly

    corne hybrid wireless keyboard based .As it consists of a left part keyboard connected to pc wired ,and right part keyboard powered by a rechargeable Battery which can operate up to week and connected to left part via…

    47 parts
  • 2 layers110 × 133 mmPad, the printed circuit board in 3D

    Pad

    YoussefAymanJo/Splitly

    corne hybrid wireless keyboard based .As it consists of a left part keyboard connected to pc wired ,and right part keyboard powered by a rechargeable Battery which can operate up to week and connected to left part via…

    45 parts

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