4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0
2 layers497.9 × 131.1 mm
Keystone
sahilchess/keystonea custom mechanical keyboard: cherry mx switches, rp2040?, oled, rgbs and more????
- Size
- 497.9 × 131.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 199
- Nets
- 131
- Pads
- 728
- Tracks, vias
- 2,681, 319
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 27 Jul 2026
- Updated
- 2 Aug 2026
Overview
Keystone is an open-source printed circuit board by sahilchess, from the sahilchess/keystone repository on GitHub. It is a 2-layer board of 497.9 × 131.1 mm with 199 parts on 131 nets, routed with 2,681 tracks and 319 vias.
It is built around the WS2812B. Its parts include 94 switches, 90 diodes, 6 capacitors, 6 inductors and 1 resistor. It belongs with the keyboards and input and lEDs and displays boards and the RP2040 boards of this library.
Main components
1README
README.mdkeystone
a custom mechanical keyboard: cherry mx switches, rp2040?, oled, rgbs and more????
demo
- go to https://kicanvas.org/?repo=https%3A%2F%2Fgithub.com%2Fsahilchess%2Fkeystone
- wait for it to load the repo
- click on the schematic or pcb file in the sidebar to view it
- use your mouse to pan and scroll to zoom
progress
week 2, schematic done, pcb started
Parts
199| Qty | Value | Footprint | References |
|---|---|---|---|
| 90 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +74 |
| 90 | SW_Push | PCM_marbastlib-mx:SW_MX_1u | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +74 |
| 6 | 100nf | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C4, C5, C6 |
| 6 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | L1, L2, L3, L4, L5, L6 |
| 3 | MX_stab | PCM_marbastlib-mx:STAB_MX_2u | S1, S2, S3 |
| 1 | 330 | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | ER_OLEDM0.91_1x-I2C | OLED:SSD1306-0.91-OLED-4pin-128x32 | U1 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_Common_THT | A1 |
| 1 | space | PCM_marbastlib-mx:STAB_MX_6.25u | S4 |
Questions
How big is the Keystone PCB?
It measures 497.9 × 131.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Keystone use?
199 parts, built around the 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 Keystone KiCad files?
From the sahilchess/keystone repository on GitHub, at the commit this page was made from: the board is keystone.kicad_pcb and its schematic keystone.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keystone design in my own project?
Its repository states no licence, so its author keeps all rights: ask sahilchess before reusing the design.
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