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2 layers110 × 133 mmPad, 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
110 × 133 mm
Copper layers
2
Thickness
1.6 mm
Parts
45
Nets
64
Pads
246
Tracks, vias
189, 7
Pours
2
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
14 Jul 2026
Updated
15 Sep 2026

Overview

Pad is an open-source printed circuit board by YoussefAymanJo, from the YoussefAymanJo/Splitly repository on GitHub. It is a 2-layer board of 110 × 133 mm with 45 parts on 64 nets, routed with 189 tracks and 7 vias.

It is built around the 1N4148WT and WS2812B. Its parts include 21 diodes, 19 switches, 1 IC and 1 connector. It belongs with the lEDs and displays boards and the RP2040 boards of this library.

Main components

2

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

45
QtyValueFootprintReferences
191N4148WTScottoKeebs_Components:Diode_DO-35D1, D2, D3, D4, D5, D6, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19 +3
3MountingHoleMountingHole:MountingHole_3.2mm_M3H1, H2, H4
2RotaryEncoder_SwitchRotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm_MountingHolesSW18, SW19
2WS2812BLED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mmD20, D21
1*ScottoKeebs_MX:MX_PCB_1.00uSW3
1+ScottoKeebs_MX:MX_PCB_2.00uSW8
1-ScottoKeebs_MX:MX_PCB_1.00uSW4
1.ScottoKeebs_MX:MX_PCB_1.00uSW17
1/ScottoKeebs_MX:MX_PCB_1.00uSW2
10ScottoKeebs_MX:MX_PCB_2.00uSW16
11ScottoKeebs_MX:MX_PCB_1.00uSW12
12ScottoKeebs_MX:MX_PCB_1.00uSW13
13ScottoKeebs_MX:MX_PCB_1.00uSW14
14ScottoKeebs_MX:MX_PCB_1.00uSW9
15ScottoKeebs_MX:MX_PCB_1.00uSW10
16ScottoKeebs_MX:MX_PCB_1.00uSW11
17ScottoKeebs_MX:MX_PCB_1.00uSW5
18ScottoKeebs_MX:MX_PCB_1.00uSW6
19ScottoKeebs_MX:MX_PCB_1.00uSW7
1ESCScottoKeebs_MX:MX_PCB_1.00uSW1
1OLED_128x64ScottoKeebs_Components:OLED_128x64J1
1Raspberry_Pi_PicoScottoKeebs_MCU:Raspberry_Pi_PicoU1
1entrtScottoKeebs_MX:MX_PCB_2.00uSW15

Questions

How big is the Pad PCB?

It measures 110 × 133 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Pad use?

45 parts, built around the 1N4148WT and 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 Pad KiCad files?

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

Can I use the Pad 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 layers138.1 × 98.3 mmSplitly, the printed circuit board in 3D

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    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…

    46 parts

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