4 layers99 × 53.3 mm
PSLab
fossasia/pslab-hardware
PSLab Hardware Design and Schematics https://pslab.io
199 parts1.7kApache-2.0
2 layers158.7 × 119.9 mm
Stellar
Robostyle/stellarStellar is a 50 keys column-staggered split keyboard. It is meant to be used with a ProMicro, e.g. Nice!Nano compatible controller
- Size
- 158.7 × 119.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 100
- Nets
- 76
- Pads
- 401
- Tracks, vias
- 781, 173
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 4 Nov 2024
- Updated
- 14 Oct 2026
Overview
Stellar is an open-source printed circuit board by Robostyle, from the Robostyle/stellar repository on GitHub. It is a 2-layer board of 158.7 × 119.9 mm with 100 parts on 76 nets, routed with 781 tracks and 173 vias.
It is built around the 1N4148W. Its parts include 53 diodes, 26 switches, 6 capacitors, 4 connectors and 1 IC. It belongs with the keyboards and input boards and the nRF52 and nRF5x boards of this library.
Main components
1README
README.md
Stellar split Keyboard
- Onshape model can be found here
TODO
PCB
- revision/made text is mirrored on
laR. - add silkscreen text for identifying the key, e.g. SW1, etc.
- set rotation on pinky to 10° instead to 5°.
- move the extra row next to the pinky column a bit up (next to the homerow?).
Inspiration
Parts
100| Qty | Value | Footprint | References |
|---|---|---|---|
| 28 | YS-SK6812MINI-E | Stellarlib:YS-SK6812MINI-E | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +12 |
| 25 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +9 |
| 25 | SW_Push_45deg | Stellarlib:Kailh_socket_PG1350 | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +9 |
| 6 | MountingHole_2.22mm_M2 | MountingHole:MountingHole_2.2mm_M2_DIN965_Pad_TopOnly | H1, H2, H3, H4, H9, H10 |
| 5 | 100nF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3, C4, C5 |
| 4 | MountingHole_2.22mm_M2 | MountingHole:MountingHole_3.5mm | H5, H6, H7, H8 |
| 1 | 4.7μF | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | Battery | Stellarlib:JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J2 |
| 1 | Battery+ | TestPoint:TestPoint_THTPad_D2.5mm_Drill1.2mm | J1 |
| 1 | Battery- | TestPoint:TestPoint_THTPad_D2.5mm_Drill1.2mm | J3 |
| 1 | OLED | Connector_JST:JST_PH_S4B-PH-K_1x04_P2.00mm_Horizontal | J4 |
| 1 | Pro Micro NRF52840 | Stellarlib:ProMicro-NoSilk | U1 |
| 1 | SW_Push | Stellarlib:microswitch_3x4x2mm | S1 |
Questions
How big is the Stellar PCB?
It measures 158.7 × 119.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Stellar use?
100 parts, built around the 1N4148W. 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 Stellar KiCad files?
From the Robostyle/stellar repository on GitHub, at the commit this page was made from: the board is PCB/left/stellar.kicad_pcb and its schematic PCB/left/backlight.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Stellar design in my own project?
Its repository states no licence, so its author keeps all rights: ask Robostyle before reusing the design.
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