2 layers60 × 30 mm
Controller
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
11 parts3kApache-2.0
2 layers66 × 81 mm
OsuPad
KnowScratcher/osuPad2A mini keyboard for osu! and more.
- Size
- 66 × 81 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 14
- Pads
- 77
- Tracks, vias
- 156, 13
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 Jun 2025
- Updated
- 23 Jun 2025
Overview
OsuPad is an open-source printed circuit board by KnowScratcher, from the KnowScratcher/osuPad repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 66 × 81 mm with 11 parts on 14 nets, routed with 156 tracks and 13 vias.
Its parts include 9 switches and 1 IC. It belongs with the RP2040 boards of this library.
README
README.mdosu! Pad
I like to play osu! and probably so do you!
BOM
Because I live in Taiwan, so I'll add a TWD column.
| Item | Amount | Price(USD) | Total(USD) | Total(TWD) |
|---|---|---|---|---|
| XIAO-RP2040 | 1 | 7.41 | 7.41 | 219 |
| Custom PCB | 1 | 4.00 | 4.00 | 119 |
| Cherry MX key switch | 9 | 0.37 | 3.35 | 99 |
| Cherry MX key cap | 9 | ? | ? | ? |
| 3D printed case | 1 | 0.65 | 0.65 | 20 |
| SSD1306 0.91' oled | 1 | 2.34 | 2.34 | 69 |
| M3x16mm screws | 4 | 0.1 | 0.4 | 12 |
| Total | 14.8 | 538 |
Journal
The journal is in JOURNAL.md
A brief summery of the journal:
How it all started
I was on a meeting with hack club hackers, and I was so impressed that I decided to join them and make this thing.
What will it do?
It's basically a small keyboard, I designed it for osu, with zxc keys and some moving button, and also a switch mode button to make it expandable.
Schematic
Licensing
This project comprises both hardware designs and software components, each licensed separately to ensure clarity and appropriate reciprocity.
Hardware Designs (3D Models, Wiring Diagrams, etc.)
All hardware design files, including but not limited to 3D models, PCB layouts, schematic diagrams, and associated documentation, are licensed under the CERN Open Hardware Licence Version 2 - Strongly Reciprocal (CERN-OHL-S-2.0). You can find the full text of this license in LICENSE_HARDWARE.
Software (Data Server, ESP32 Firmware, etc.)
All software components, including but not limited to firmware, are licensed under the GNU Affero General Public License Version 3.0 or later (AGPL-3.0-or-later). You can find the full text of this license in LICENSE_SOFTWARE.
Documentation
All documentations, including but not limited to the README.md and wiki pages, are licensed under the CC-BY-SA-4.0. You can find the full text of this license in LICENSE_DOCUMENTATION
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9 |
| 1 | SSD1306 | SSD1306-0.91-OLED-4pin-128x32:SSD1306-0.91-OLED-4pin-128x32 | Brd1 |
| 1 | XIAO-RP2040-DIP | Seeed Studio XIAO Series Library:XIAO-RP2040-DIP | U1 |
Questions
How big is the OsuPad PCB?
It measures 66 × 81 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OsuPad use?
11 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 OsuPad KiCad files?
From the KnowScratcher/osuPad repository on GitHub, at the commit this page was made from: the board is PCB/osuPad/osuPad.kicad_pcb and its schematic PCB/osuPad/osuPad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OsuPad design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 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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