2 layers147 × 78 mm
Seismos 5CoreLShift
ReSummit/Seismos
A split keyboard that evolves the concept of the Zebra keyboard, but fancier
32 parts18GPL-3.0
2 layers276.9 × 127.3 mm
Scupper84
amacleod/scupper84The Scupper 84 is an 84-key row-staggered low profile keyboard with CFX spacing.
- Size
- 276.9 × 127.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 258
- Nets
- 205
- Pads
- 1,150
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 21 Oct 2024
- Updated
- 27 Dec 2025
Overview
Scupper84 is an open-source printed circuit board by amacleod, from the amacleod/scupper84 repository on GitHub, published under the MIT licence. It is a 2-layer board of 276.9 × 127.3 mm with 258 parts on 205 nets.
It is built around the 74HC595 and SK6812-EC20. Its parts include 85 diodes, 85 switches, 3 ICs and 1 capacitor. It belongs with the keyboards and input boards of this library.
Main components
2
74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
SK6812-EC20
SMD,2x2mm-40℃~+80℃ 0.65mA 0.65mm 100mcd~200mcd 160mcd~320mcd 160° 1kHz 2000V 2mm 2mm 3.7V~5.5V 460nm~475nm 50mcd~100mcd 520nm~535nm 620nm~630nm 800Kbit/s Built-in power-on reset circuit、Built-in one-way transmission function Semi-transparent lens SMD,2x2mm RGB LEDs(Built-in IC) ROHSOPSCO OptoelectronicsRGB LEDs(Built-In IC)
README
README.mdScupper84 Row-Staggered Wee Keyboard
The Scupper84 is an 84-key (75% layout) row-staggered keyboard in CFX spacing to be small. The name Scupper is a reference to the Stan Rogers song Barrett's Privateers which contains the lyric, "and the cook in the scuppers with the staggers and jags," since this keyboard uses a row-staggered design.
Parts
258| Qty | Value | Footprint | References |
|---|---|---|---|
| 84 | D | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +68 |
| 84 | PG1350 | keyboard_parts:Socket_PG1350_Hotswap | K1, K2, K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K20, K21, K22, K23 +68 |
| 84 | SK6812-E | keyboard_parts:LED_RGB_SK6812Mini-E | DS1, DS2, DS10, DS11, DS12, DS13, DS14, DS15, DS16, DS17, DS18, DS19, DS20, DS21, DS22, DS23 +68 |
| 2 | 74HC595 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U2, U3 |
| 1 | 1N4001 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D85 |
| 1 | C | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_B3U-1000P | SW1 |
| 1 | ~ | keyboard_parts:XIAO RP2040 Castellated | U1 |
Questions
How big is the Scupper84 PCB?
It measures 276.9 × 127.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Scupper84 use?
258 parts, built around the 74HC595 and SK6812-EC20. 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 Scupper84 KiCad files?
From the amacleod/scupper84 repository on GitHub, at the commit this page was made from: the board is scupper84.kicad_pcb and its schematic rgb_glow.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Scupper84 design in my own project?
Its repository publishes it under the MIT 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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