2 layers60 × 30 mm
Controller
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
11 parts3kApache-2.0
2 layers18 × 22.5 mm
Libmanagement
cyao1234/speedrunspeeeeeeeeeeeeeeeeeeeed
- Size
- 18 × 22.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 23
- Pads
- 79
- Tracks, vias
- 86, 18
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 Jun 2026
- Updated
- 28 Jun 2026
Overview
Libmanagement is an open-source printed circuit board by cyao1234, from the cyao1234/speedrun repository on GitHub. It is a 2-layer board of 18 × 22.5 mm with 11 parts on 23 nets, routed with 86 tracks and 18 vias.
Its parts include 3 capacitors, 3 resistors, 3 connectors and 2 ICs. It belongs with the RISC-V boards of this library.
README
README.mdSpeedrun of a ch32 devboard
This project is to see how little time can i use to make a complete devboard. It is powered by an ultra low cost mcu too.
Integrated adc and usb allows for a wide variety of usages.
Features:
- Ultra compact footpritn
- Super tiny
- Dead simple, guarenteed workings
- GPIO pins
- Rounded corners
- PCB instead of deadbug
Bom:
| Item | Price |
|---|---|
| PCB + PCBA | $23.83 |
| Shipping | $6.57 |
| Total | $30.40 |
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R1, R2 |
| 2 | Conn_01x06 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J2, J3 |
| 1 | 1.5k | Resistor_SMD:R_0402_1005Metric | R3 |
| 1 | 100nF | Capacitor_SMD:C_0402_1005Metric | C3 |
| 1 | CH32V003FxUx | Package_DFN_QFN:QFN-20-1EP_3x3mm_P0.4mm_EP1.65x1.65mm_ThermalVias | U2 |
| 1 | USB_C_Receptacle_USB2.0_14P | PCM_ckl-connector:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23-3 | U1 |
Questions
How big is the Libmanagement PCB?
It measures 18 × 22.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Libmanagement 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 Libmanagement KiCad files?
From the cyao1234/speedrun repository on GitHub, at the commit this page was made from: the board is hardware/libmanagement.kicad_pcb and its schematic hardware/libmanagement.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Libmanagement design in my own project?
Its repository states no licence, so its author keeps all rights: ask cyao1234 before reusing the design.
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