2 layers130 × 169.5 mm
Bsl array v1
jackw01/scanlight
A better light source for scanning color negative film
110 parts397CERN-OHL-W-2.0
2 layers287.1 × 87.5 mm
- Size
- 287.1 × 87.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 110
- Nets
- 102
- Pads
- 556
- Tracks, vias
- 614, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 19 Sep 2025
- Updated
- 28 Sep 2026
Overview
First is an open-source printed circuit board by MaesMM, from the MaesMM/first-keyboard repository on GitHub. It is a 2-layer board of 287.1 × 87.5 mm with 110 parts on 102 nets, routed with 614 tracks and 0 vias.
Its parts include 48 diodes, 48 switches and 2 ICs. It belongs with the nRF52 and nRF5x boards of this library.
Parts
110| Qty | Value | Footprint | References |
|---|---|---|---|
| 48 | Diode | ScottoKeebs_Components:Diode_DO-35 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +32 |
| 48 | Keyswitch | ScottoKeebs_Hotswap:SW_Gateron_LowProfile_HotSwap_THT | S1, S2, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20, S21, S22, S23 +32 |
| 2 | , | ||
| 2 | Battery_Cell | ScottoKeebs_Scotto:Battery | BT1, BT2 |
| 2 | Nice_Nano_V2 | ScottoKeebs_MCU:Nice_Nano_V2 | U1, U2 |
| 2 | Switch | Button_Switch_THT:SW_Slide_SPDT_Straight_CK_OS102011MS2Q | RstL1, RstR1 |
The 104 most common of 110 parts.
Questions
How big is the First PCB?
It measures 287.1 × 87.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the First use?
110 parts. 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 First KiCad files?
From the MaesMM/first-keyboard repository on GitHub, at the commit this page was made from: the board is first/first.kicad_pcb and its schematic first/first.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the First design in my own project?
Its repository states no licence, so its author keeps all rights: ask MaesMM before reusing the design.
Similar boards
- 2 layers141.5 × 83 mm
Rolio
MickiusMousius/Rolio46Keyboard
A split wireless keyboard based on the Corne and Sofle
110 parts236MIT - 2 layers100 × 100 mm
Keyboard-100x100-minif4-dual rgb reversible
rgoulter/keyboard-labs
Repo with my PCB designs and keyboard firmware
110 parts236 - 2 layers277.2 × 107.5 mm
Corne V4 Pro Micro Edition
klouderone/CorneV4ProMicroEdition
The Corne V4 with Pro Micro Micocontrollers, made specifically for beginners and support for wireless microcontrollers
110 parts208CC-BY-4.0 - 2 layers134.6 × 208.3 mm
- 2 layers242.9 × 76.2 mm
- 2 layers126.2 × 100 mm
Quantizer pcb
QuinnFreedman/modular
A collection of free & open source DIY synthesizer module designs for Eurorack
110 parts116 - 2 layers244.2 × 112 mm
