2 layers63.5 × 58 mm
Latest
minipadKB/minipad
The PCB and case files for the minipad, an RP2040-based 2-3-key keypad for the rhythm game osu!.
39 parts52GPL-3.0
2 layers100 × 75 mm
Left
chrontax/owoseqwork in progress
- Size
- 100 × 75 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 42
- Pads
- 156
- Tracks, vias
- 215, 26
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 31 Aug 2024
- Updated
- 3 Sep 2025
Overview
Left is an open-source printed circuit board by chrontax, from the chrontax/owoseq repository on GitHub. It is a 2-layer board of 100 × 75 mm with 23 parts on 42 nets, routed with 215 tracks and 26 vias.
It is built around the GH39FKSW and 74HC4051. Its parts include 11 ICs and 1 connector. It belongs with the RP2040 boards of this library.
Main components
2Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | Hall_Sensor | Package_TO_SOT_SMD:SOT-23 | U1, U2, U3, U4, U5, U6, U8, U9, U10, U11 |
| 10 | Key | MX:MX-1U-NoPins | H1, H2, H3, H4, H5, H6, H7, H8, H9, H10 |
| 1 | 74HC4051 | Package_SO:SOIC-16W_5.3x10.2mm_P1.27mm | U7 |
| 1 | Jack | Connector_Audio:Jack_3.5mm_PJ320D_Horizontal | J1 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_Common_SMD | A1 |
Questions
How big is the Left PCB?
It measures 100 × 75 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Left use?
23 parts, built around the GH39FKSW and 74HC4051. 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 Left KiCad files?
From the chrontax/owoseq repository on GitHub, at the commit this page was made from: the board is left/pcb/left.kicad_pcb and its schematic left/pcb/left.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Left design in my own project?
Its repository states no licence, so its author keeps all rights: ask chrontax before reusing the design.
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