4 layers138.2 × 200.4 mm
2 layers166.5 × 113.5 mm
KORA
fmash16/KORA11An Ergonomic Orthogonal Split keyboard with high modularity
- Size
- 166.5 × 113.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 86
- Nets
- 75
- Pads
- 1,162
- Tracks, vias
- 0, 0
- Pours
- 1
- Routed
- Not yet
- KiCad
- KiCad 7 (file 20221018)
- Created
- 5 Mar 2023
- Updated
- 5 Mar 2023
Overview
KORA is an open-source printed circuit board by fmash16, from the fmash16/KORA repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 166.5 × 113.5 mm with 86 parts on 75 nets.
It is built around the TCA9555PWR(UMW), SK6812MINI-E and EG1218. Its parts include 32 diodes, 25 switches, 4 ICs, 1 capacitor and 1 resistor. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) and nRF52 and nRF5x boards of this library.
Main components
3
TCA9555PWR(UMW)
TSSOP-24TSSOP-24 I/O Expanders ROHSUMWI/O Expanders
SK6812MINI-E
SMD-40℃~+85℃ 0.6mA 1.78mm 120mcd~240mcd 120° 160mcd~320mcd 1kHz 2.8mm 2000V 3.2mm 3.7V~5.5V 460nm~470nm 515nm~525nm 620nm~625nm 800Kbit/s 815mcd~1275mcd Semi-transparent lens SMD RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
EG1218
插件-20℃~+70℃ 11.6mm 200mA 30V 4mm 7.4mm Black PC Pin Rectangular Columnar SPDT Through Hole Plugin Slide Switches ROHSE-SwitchSlide Switches
README
README.mdKORA
An Ergonomic Orthogonal Split keyboard with high modularity
Parts
86| Qty | Value | Footprint | References |
|---|---|---|---|
| 25 | 1N4148 | kora:D3_TH_SMD | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +9 |
| 21 | SW | kora:MX_Choc_Hotswap_Mod | S4, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21, S22, S23, S24 +5 |
| 9 | MOUNT_HOLE | prettylib:MountingHole_2.2mm_M2_Pad_Via | MH1, MH2, MH3, MH4, MH5, MH6, MH7, MH8, MH9 |
| 8 | Jumper_2_Open | kora:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 |
| 7 | SK6812Mini-e | prettylib:SK6812_mini_e_flipable | D27, D28, D29, D30, D31, D32, D33 |
| 2 | Jumper_2_Open | kora:SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP9, JP10 |
| 2 | SW | kora:MX__CHOC_KAILH_SOCKET_2U_2X1U | S2, S3 |
| 1 | 100n | prettylib:SMD-0603 | C1 |
| 1 | 4.7K | kora:RESISTOR | R1 |
| 1 | Battery Pads | kora:SolderWire-0.5sqmm_1x02_P4.8mm_D0.9mm_OD2.3mm | B2 |
| 1 | EG1218 | kora:RevSlideSwitch | S1 |
| 1 | JST Battery | kora:JST_PH_reversible | B1 |
| 1 | OLED-128x64 | kora:SSD1306_128x64OLED | J5 |
| 1 | ProMicro | kora:ProMicro_rev2 | U2 |
| 1 | RotaryEncoder_Switch | kora:MX-1U-EC11_Switch | SW16 |
| 1 | SW_Push | kora:SW_Push_1P1T-MP_NO_Horizontal_Alps_SKRTLAE010_both_sides | RSW1 |
| 1 | TCA9555PWR | kora:TCA9555PWR | U4 |
| 1 | TRRS | kora:MJ-4PP-9 | U3 |
| 1 | XIAO-BLE | kora:XIAO-BLE | U1 |
Questions
How big is the KORA PCB?
It measures 166.5 × 113.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the KORA use?
86 parts, built around the TCA9555PWR(UMW), SK6812MINI-E and EG1218. 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 KORA KiCad files?
From the fmash16/KORA repository on GitHub, at the commit this page was made from: the board is pcb/kora.kicad_pcb and its schematic pcb/kora.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the KORA 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).
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