2 layers55.6 × 22.9 mm
2 layers85.4 × 34 mm
C7k lt
mikeysklar/c7kfoc7k flat out
- Size
- 85.4 × 34 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 16
- Nets
- 18
- Pads
- 80
- Tracks, vias
- 119, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 1 May 2025
- Updated
- 6 May 2025
Overview
C7k lt is an open-source printed circuit board by mikeysklar, from the mikeysklar/c7kfo repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 85.4 × 34 mm with 16 parts on 18 nets, routed with 119 tracks and 0 vias.
Its parts include 7 switches, 6 resistors, 1 IC and 1 connector.
README
README.mdc7kfo
c7k flat out
Two handed super flat chording keyboard.
Parts
16| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4 |
| 4 | SW_Push | keyswitches:Kailh_socket_PG1350 | SW0, SW1, SW2, SW3 |
| 3 | rt-ang | Button_Switch_THT:SW_Tactile_SPST_Angled_PTS645Vx83-2LFS | SW4, SW5, SW6 |
| 2 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R6 |
| 1 | Conn_01x04_Socket | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J1 |
| 1 | MCP23008-xSS | Package_SO:SSOP-20_5.3x7.2mm_P0.65mm | U1 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
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Questions
How big is the C7k lt PCB?
It measures 85.4 × 34 mm and has 2 copper layers, 1.6 mm thick.
What parts does the C7k lt use?
16 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 C7k lt KiCad files?
From the mikeysklar/c7kfo repository on GitHub, at the commit this page was made from: the board is c7k-lt/c7k-lt.kicad_pcb and its schematic c7k-lt/c7k-lt.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the C7k lt 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).