2 layers313.2 × 127.9 mm Keeby, the printed circuit board in 3D

Keeby

A custom ergonomic split keyboard made for HackClub Blueprint based on Corne, Lily58 and Sofle V2

Size: 313.2 × 127.9 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 254
Nets: 170
Pads: 1,104
Tracks, vias: 1,404, 396
Pours: 1
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 10 Dec 2025
Updated: 18 Apr 2026

Overview

Keeby is an open-source printed circuit board by codecooker1, from the codecooker1/keeby repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 313.2 × 127.9 mm with 254 parts on 170 nets, routed with 1,404 tracks and 396 vias.

It is built around the SK6812MINI-EA. Its parts include 62 switches, 60 capacitors, 58 diodes, 58 inductors and 4 connectors. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.

Main components

SK6812MINI-EA
SMD-4P,3.2x2.8mm-40℃~+85℃ 0.6mA 1.78mm 100ns 100ns 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 500ns 520nm~530nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Built-in power-on reset circuit Translucent Frosted Lens SMD-4P,3.2x2.8mm RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)

README

README.md

keeby

A custom ergonomic split keyboard made for HackClub Blueprint based on Corne, Lily58 and Sofle V2

Routing PCB

more detailed svg and pdf available in PCB/plot

Schematic for the right half

Schematic for the left half

Casing??

Yup, made the casing in onshape. This is supposed to be 3D printed. You can find the 3D part files in the CAD/PrintParts folder. Here the FullCase is the full 3D model of the casing all parts included. Or you can find 3D models of individual parts in the CAD/PrintParts folder named by part.

Alternatively, you can view the Onshape design here: https://cad.onshape.com/documents/7252c9cab477090fa80b5ebe/w/9b87afb059b10e97f9e15540/e/26e119e6690b400aabda07c5

How does the final PCB looks?

For detailed view the .step files is in PCB/3dout/

Final Assembled Keyboard

Detailed BOM of Keeby

	References	Value	Footprint	Description	Quantity	Unit Price	Total Price	Link
1	L*	SK6812MINI-E	LED_choc_6028R-ROT	Reverse mount adressable LED (WS2812 protocol) SK6812-MINI-E	58		$6.19	https://www.aliexpress.com/item/1005007863635868.html?spm=a2g0o.cart.0.0.810538darhu6L5&mp=1&pdp_npi=6%40dis%21USD%21USD%206.19%21USD%206.19%21%21USD%206.19%21%21%21%40212a70c017685672603975784e0c90%2112000042594617264%21ct%21BD%216073142226%21%211%210%21
2	D*	D	D_SOD-123	Diode	100		$0.90	https://www.aliexpress.com/item/1005005460442161.html?spm=a2g0o.cart.0.0.810538darhu6L5&mp=1&pdp_npi=6%40dis%21USD%21USD%200.98%21USD%200.86%21%21USD%200.86%21%21%21%40212a70c017685672603975784e0c90%2112000033171824002%21ct%21BD%216073142226%21%211%210%21
3	SW*	SW_Push	SW_choc_v1_HS_CPG135001S30_1u	Kailh Choc Mechanical Switch	70		$21.45	https://www.aliexpress.com/item/1005008751312031.html?spm=a2g0o.cart.0.0.810538darhu6L5&mp=1&pdp_npi=6%40dis%21USD%21USD%2029.64%21USD%2021.45%21%21USD%2021.45%21%21%21%40212a70c017685672603975784e0c90%2112000046516675121%21ct%21BD%216073142226%21%211%210%21
4	SW59, SW60	RotaryEncoder_Switch	ROT_Alps_EC11E-Switch	Rotary encoder, dual channel, incremental quadrate outputs, with switch	2	$0.00	$2.00	https://www.aliexpress.com/item/1005006136446310.html?spm=a2g0o.cart.0.0.810538darhu6L5&mp=1&pdp_npi=6%40dis%21USD%21USD%200.23%21USD%200.23%21%21USD%200.23%21%21%21%40212a70c017685672603975784e0c90%2112000035923124125%21ct%21BD%216073142226%21%214%210%21
5	SW61, SW62	SW_SPDT	SW_SPDT_PCM12	Switch, single pole double throw	2	$0.50	$1.00	https://www.aliexpress.com/item/32951447363.html?spm=a2g0o.productlist.main.9.3fec7a5bb6AoHW&algo_pvid=997ab485-32d4-4ae3-b083-92d8ea070226&algo_exp_id=997ab485-32d4-4ae3-b083-92d8ea070226-8&pdp_ext_f=%7B%22order%22%3A%222%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21USD%210.50%210.50%21%21%210.50%210.50%21%4021010d9017670062326406800eeead%2112000025562152088%21sea%21BD%216073142226%21ABX%211%210%21n_tag%3A-29910%3Bd%3A3a54dfaf%3Bm03_new_user%3A-29895&curPageLogUid=M9MqK9B1Ixso&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A32951447363%7C_p_origin_prod%3A
6	J1, J2	Conn_01x04_Pin	SSD1306-0.91-OLED-4pin-128x32	.91" SSD1306 OLED Display	2	$1.00	$2.00	https://www.alibaba.com/product-detail/0-91-inch-OLED-Module-White_1601154882218.html?chatToken=U1ZkdVJIVkhVRXB3VVd0MVF6QnFTSEJEV21jNEt6SmtiMnBMZWprNGIxVlNlRGRFYm05WmJXa3JlRVZHTDBsUVpFaGpTM0ZXVUdoTmVtbHhNbTg0VWpkbFdrSlFUa292TmtjeVNXSkJTbGtyYzBGS2JsVkJaVzQ1VUZCaFMza3hNMlZEUW1SQlIzSm1NRzFaYW1RMFREbEpTa2hUWW5GRGNXbzVRMGxwWjBjNE0wSm9lREpZVWpKQlNERk5Va05JVFZoS2FtTkVMMlZKVG1WSlJITTRSVGRHYW5SRGJITktaV3BDYkV3MGVuUkJPR0ZFUW1SQ1VUWXdWekpvYmpSTiZ2ZXJzaW9uPTIuMC4w&encryptTargetLoginId=8pctgRBMALNf4b09DmS4sxV0n3wwMjKJ
7	J3, J4	JST_PH	JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal	JST Connector for battery	2		$1.00	https://www.aliexpress.com/item/4001235017139.html?spm=a2g0o.cart.0.0.810538darhu6L5&mp=1&pdp_npi=6%40dis%21USD%21USD%200.77%21USD%200.73%21%21USD%200.73%21%21%21%40212a70c017685672603975784e0c90%2110000015400386674%21ct%21BD%216073142226%21%211%210%21
8	N/A	Hotswap Socket	N/A	Kailh Choc Mechanical Switch Hotswap Socket	58		$7.00	https://www.aliexpress.com/item/32901654130.html?spm=a2g0o.productlist.main.6.8d11e36aeSUXP9&algo_pvid=a9cd544c-7bcc-4615-bf47-0cada34fa870&algo_exp_id=a9cd544c-7bcc-4615-bf47-0cada34fa870-5&pdp_ext_f=%7B%22order%22%3A%225%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21USD%211.00%211.00%21%21%211.00%211.00%21%402102f22c17663266103024375e1ee4%2165889444978%21sea%21BD%210%21ABX%211%210%21n_tag%3A-29910%3Bd%3A3bd32eff%3Bm03_new_user%3A-29895&curPageLogUid=v5xv7rZ1f0eT&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A32901654130%7C_p_origin_prod%3A
9	N/A	Choc Keycaps	N/A	Choc Keycaps Transparent 1u	70		$14.00	https://www.aliexpress.com/item/1005010282783838.html?spm=a2g0o.cart.0.0.810538darhu6L5&mp=1&pdp_npi=6%40dis%21USD%21USD%2021.34%21USD%2013.87%21%21USD%2013.87%21%21%21%40212a70c017685672603975784e0c90%2112000051778139004%21ct%21BD%216073142226%21%211%210%21
10	N/A	LiPo Battery	N/A	LiPo Battries 1200 mAh	2	$1.60	$3.20	https://www.daraz.com.bd/products/jst-37v-1200mah-783448-lipo-i447238909-s2140245262.html?c=&channelLpJumpArgs=&clickTrackInfo=query%253Alipo%252Bbattery%252B1200%252BmAh%253Bnid%253A447238909%253Bsrc%253ALazadaMainSrp%253Brn%253A123b02ee72e0153ad0b88c4f2d851919%253Bregion%253Abd%253Bsku%253A447238909_BD%253Bprice%253A189%253Bclient%253Adesktop%253Bsupplier_id%253A1034652%253Bbiz_source%253Ah5_unknow%253Bslot%253A11%253Butlog_bucket_id%253A470687%253Basc_category_id%253A9365%253Bitem_id%253A447238909%253Bsku_id%253A2140245262%253Bshop_id%253A40589%253BtemplateInfo%253A&freeshipping=0&fs_ab=1&fuse_fs=&lang=en&location=Dhaka&price=189&priceCompare=skuId%3A2140245262%3Bsource%3Alazada-search-voucher%3Bsn%3A123b02ee72e0153ad0b88c4f2d851919%3BoriginPrice%3A18900%3BdisplayPrice%3A18900%3BsinglePromotionId%3A-1%3BsingleToolCode%3AmockedSalePrice%3BvoucherPricePlugin%3A0%3Btimestamp%3A1767006835112&ratingscore=4.0&request_id=123b02ee72e0153ad0b88c4f2d851919&review=10&sale=98&search=1&source=search&spm=a2a0e.searchlist.list.11&stock=1
11	U3,U4		SuperMini nRF52840	Supermini NRF52840	2	$3.00	$6.00	https://www.alibaba.com/product-detail/Promicro-NRF52840-Development-Board-Compatible-with_1601439610830.html?chatToken=U1ZkdVJIVkhVRXB3VVd0MVF6QnFTSEJEV21jNEt6SmtiMnBMZWprNGIxVlNlRGRFYm05WmJXa3JlRzlZU2xoNFZVSjRSV0Y2V0dkTVMyWm1Mell4UTJJclNFeFVaRlkwUW5SelVITnZOWFJyU0hRMU1EVkZWR2N4UkhkSlpGTjNibFJDZEVkVVltZE1LMGREWW1wNmFIZE5VMDl2UTJwcFVHbE9RMlpKSzBaSldUaEVOMVJwV1dkNGEzUlBjMlUxY1haeVVEaEdiMEZaYzFGV05WZFlkRkE1WjFoaE5IbEhjR2hxVkdaSmFFTkllVzF0TWtScVJIbGpkM0JzYW10cyZ2ZXJzaW9uPTIuMC4w&encryptTargetLoginId=8pctgRBMALMgcUFh%2BNBAvYmb4dHbWtMY6wdkfYSa%2Bs4%3D
12	N/A	Choc Keycaps	N/A	Choc keycaps Black 1.75u	2		$5.87	https://www.aliexpress.com/item/1005005916325764.html?spm=a2g0o.productlist.main.23.39c35e7coOVJI8&algo_pvid=714c0d53-c229-474b-a098-63bf297f75e2&algo_exp_id=714c0d53-c229-474b-a098-63bf297f75e2-22&pdp_ext_f={%22order%22%3A%2237%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22}&pdp_npi=6%40dis!AUD!9.46!1.50!!!6.25!0.99!%402140c1c317668196694054953ee7c0!12000034838215570!sea!AU!0!ABX!1!0!n_tag%3A-29910%3Bd%3A731fdbb5%3Bm03_new_user%3A-29895%3BpisId%3A5000000187462935&curPageLogUid=hfCDIVYR2pPX&utparam-url=scene%3Asearch
					TOTAL		$70.61

Parts

254

Qty	Value	Footprint	References
58	D	Diode_SMD:D_SOD-123	D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +42
58	SK6812-MINI-E	marbastlib-choc:LED_choc_6028R-ROT	L1, L2, L10, L11, L12, L13, L14, L15, L16, L17, L18, L19, L20, L21, L22, L23 +42
58	SW_Push	marbastlib-choc:SW_choc_v1_HS_CPG135001S30_1u	SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +42
56	C_Small_0.1uf	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C2, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24 +40
8	MountingHole	MountingHole:MountingHole_2.1mm	H1, H2, H3, H4, H5, H6, H7, H8
2	C_Polarized_Small	Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_HandSolder	C59, C60
2	C_Small_0.1uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C35
2	Conn_01x04_Pin	OLED-SSD1306:SSD1306-0.91-OLED-4pin-128x32	J1, J2
2	JST_PH	Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal	J3, J4
2	R_470Ω	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1, R2
2	RotaryEncoder_Switch	marbastlib-various:ROT_Alps_EC11E-Switch	S59, S60
2	S_SPDT	Button_Switch_SMD:SW_SPDT_PCM12	S61, S62
2	SuperMini nRF52840	marbastlib-xp-promicroish:SuperMini_nRF52840_AH_USBup	U3, U4

Questions

How big is the Keeby PCB?

It measures 313.2 × 127.9 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Keeby use?

254 parts, built around the SK6812MINI-EA. 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 Keeby KiCad files?

From the codecooker1/keeby repository on GitHub, at the commit this page was made from: the board is PCB/keeby.kicad_pcb and its schematic PCB/half.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Keeby design in my own project?

Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

Category and platform

Keyboards and input nRF52 and nRF5x

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/codecooker1-keeby" title="Keeby in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/codecooker1-keeby.jpg" alt="Keeby" width="1200" height="900">

A picture that opens the board, for a README

[![Keeby](https://pcbkit.io/embed/boards/codecooker1-keeby.jpg?size=s)](https://pcbkit.io/boards/codecooker1-keeby)

Source

Repository: codecooker1/keeby
Board file: PCB/keeby.kicad_pcb
Commit: 51c28b0
Licence: GPL-3.0

Similar boards

2 layers142.5 × 101 mm
Hillside46
mmccoyd/hillside
Family of split ergonomic keyboards with three rows of six or five keys and a generous thumb arc
92 parts448MIT
2 layers172 × 152.9 mm
Trackpad
george-norton/peacock
A big QMK powered trackpad
102 parts309CERN-OHL-S-2.0
4 layers95.6 × 73.6 mm
Mathpad
Summa-Cogni/Mathpad
A mathematical keypad for students and professionals
93 parts243
2 layers390 × 120.2 mm
Keyboard
joshajohnson/entropy
Strange keyboard with a left hand numpad
334 parts97
2 layers295.3 × 133.4 mm
Fidrildi4
jstevej/fidrildi
Butterfly-shaped 34-key keyboard.
124 parts26
4 layers344 × 117.5 mm
Zellia80
mhdimo/Zellia80-HE
Zellia80-HE PCB files source
497 parts24LGPL-2.1
2 layers133.4 × 182.7 mm
Casasagi production
Self-Made-Keyboards-in-Japan/Casasagi
The mechanical keyboard made by SMKiJ community.
248 parts15
2 layers169.9 × 153.5 mm
HermitL
orihikarna/Hermit
An ergonomic keyboard project
170 parts9CC0-1.0