YUIOP/27 Keyboard

koron·yuiop·yuiop27/yuiop27.kicad_pcb

YUIOP/27 Keyboard PCB layout, top view — open source board by koron

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About the YUIOP/27 Keyboard PCB

YUIOP/27 Keyboard is an open source PCB design by koron, published on GitHub under the MIT license. It is a 2-layer board measuring 147.6 × 97.6 mm, with 85 components from 10 distinct parts.

Other key parts include the ProMicro. By type, the board carries 28 LEDs, 27 switches, 27 diodes, 1 IC and 1 connector.

It belongs with the keyboards designs in this gallery.

From the project

YUIOP: Etude of designing keyboards

YUIOP keyboards are experimental original keyboards designed by KoRoN.

* yuiop27/ - separate keyboard prototype.

* yuiop54/main - signle board keyboard prototype.

combined right and left-hand boards of yuiop27. PCB dimension is 285.00mm x 94.60mm (GH60 compatible form factor without screw holes).

* yuiop54/main2 - researching version of yuiop54.

multi-sheets schematic. fix layout for auto routing. introduce GND cupper fill. * rev.B - trial to make compatible with GH60 (include screw holes).

Main components on the YUIOP/27 Keyboard

YUIOP/27 Keyboard bill of materials (BOM)

85 components, 10 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	ProMicro	ProMicro_v3	U1
1	5077CR-16-SMC2-BK MJ-4PP-9	MJ-4PP-9_1side	J1
1	SW_PUSH	ResetSW_1side	RSW1
21	SW_PUSH	CherryMX_Hotswap	SW1, SW2, SW3, SW4, SW5, SW6, SW8, SW9 +13
2	SW_PUSH	Cherry_MX_Hotswap_1.5u	SW7, SW25
1	SW_PUSH	Cherry_MX_Hotswap_1.75u	SW13
3	SW_PUSH	Cherry_MX_Hotswap_1.25u	SW19, SW26, SW27
27	YS-SK6812MINI-E	YS-SK6812MINI-E	LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +19
1	OLED	OLED_128x32	OL1
27	D	D3_SMD_v2	D1, D2, D3, D4, D5, D6, D7, D8 +19

YUIOP/27 Keyboard design files

The KiCad project lives in the koron/yuiop repository on GitHub; these links point at the commit this page was built from.

Layoutyuiop27/yuiop27.kicad_pcb
BOMyuiop29re/yuiop29re-bom.xlsx

YUIOP/27 Keyboard: common questions

How big is the YUIOP/27 Keyboard PCB?

The YUIOP/27 Keyboard measures 147.6 × 97.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the YUIOP/27 Keyboard?

85 components, from 10 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the YUIOP/27 Keyboard design files?

From the koron/yuiop repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the YUIOP/27 Keyboard design in my own project?

Yes, under the terms of its MIT license, which koron chose for the repository.

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