2 layers103 × 30.5 mm
2 layers57.7 × 36 mm
Flatchord
mikeysklar/flatchord1low profile pocket keyboard
- Size
- 57.7 × 36 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 22
- Pads
- 63
- Tracks, vias
- 66, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 29 Jul 2025
- Updated
- 23 Aug 2025
Overview
Flatchord is an open-source printed circuit board by mikeysklar, from the mikeysklar/flatchord repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 57.7 × 36 mm with 9 parts on 22 nets, routed with 66 tracks and 0 vias.
Its parts include 6 switches, 1 IC and 1 connector. It belongs with the ESP32 boards of this library.
README
README.mdflatchord
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | SW_SPST | Button_Switch_SMD:Panasonic_EVQPUL_EVQPUC | SW0, SW1, SW2, SW3, SW4 |
| 1 | JST-GH 1.25 | footprints:JST_GH_SM02B-GHS-TB_1x02-1MP_P1.25mm_Horizontal | BAT1 |
| 1 | OLED SH1106 | footprints:tft-sh1106-1.3-i2c | J1 |
| 1 | SW_DPDT_x2 | sw_spdt_slide_mskt-12c03:Untitled | SW5 |
| 1 | esp32s3-supermini | footprints:ESP32-S3-SuperMini_SMT | U1 |
Questions
How big is the Flatchord PCB?
It measures 57.7 × 36 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Flatchord use?
9 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 Flatchord KiCad files?
From the mikeysklar/flatchord repository on GitHub, at the commit this page was made from: the board is flatchord/flatchord.kicad_pcb and its schematic flatchord/flatchord.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Flatchord 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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