2 layers70 × 71 mm
Jewelled lc1
matthiasnowak/jewelled
This is a panel meant for production of the Earrings, allowing for 2 Earrings per panel.
148 parts3
2 layers48 × 15 mm
Cat32
acornitum/cat321ch32 devboard ish keychain thingy
- Size
- 48 × 15 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 35
- Nets
- 33
- Pads
- 86
- Tracks, vias
- 350, 46
- Pours
- 33
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Aug 2026
- Updated
- 22 Aug 2026
Overview
Cat32 is an open-source printed circuit board by acornitum, from the acornitum/cat32 repository on GitHub. It is a 2-layer board of 48 × 15 mm with 35 parts on 33 nets, routed with 350 tracks and 46 vias.
It is built around the CH32V203G6U6. Its parts include 6 resistors, 4 capacitors, 3 diodes, 2 ICs and 2 switches. It belongs with the microcontroller boards boards and the RISC-V boards of this library.
Main components
1README
README.mdcat32
CH32V203 keychain thing!
Featuring three side-view LEDs at the back with plenty of exposed FR4, so that light shines through the PCB. The four edge exposed copper things at the side have capacitive touch. Also, all unused pins are broken out :D
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 220 | Resistor_SMD:R_0402_1005Metric | R2, R3, R4, R5, R6 |
| 3 | LOGO | LOGO | G***, G***, G*** |
| 3 | PB7 | TestPoint:TestPoint_Pad_D1.0mm | TP9, TP10, TP11 |
| 2 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2 |
| 2 | 1uF | Capacitor_SMD:C_0402_1005Metric | C3, C4 |
| 2 | LED | LED_SMD:LED_Kingbright_APA1606_1.6x0.6mm_Horizontal | D1, D2 |
| 1 | 4.7k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | BOOT0 | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW2 |
| 1 | CH32V203G6U6 | Package_DFN_QFN:QFN-28-1EP_4x4mm_P0.4mm_EP2.7x2.7mm | U1 |
| 1 | LED_ABGR | LED_SMD:LED_RGB_Everlight_EASV3015RGBA0_Horizontal | D3 |
| 1 | PA0 | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | PA1 | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
| 1 | PA15 | TestPoint:TestPoint_Pad_D1.0mm | TP7 |
| 1 | PA2 | TestPoint:TestPoint_Pad_D1.0mm | TP5 |
| 1 | PA3 | TestPoint:TestPoint_Pad_D1.0mm | TP6 |
| 1 | PA9 | TestPoint:TestPoint_Pad_D1.0mm | TP12 |
| 1 | PB6 | TestPoint:TestPoint_Pad_D1.0mm | TP8 |
| 1 | PD0 | TestPoint:TestPoint_Pad_D1.0mm | TP13 |
| 1 | PD1 | TestPoint:TestPoint_Pad_D1.0mm | TP14 |
| 1 | RESET | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | SWCLK | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | SWDIO | TestPoint:TestPoint_Pad_D1.0mm | TP1 |
| 1 | USB_A | Connector_PCB:USB_A_PCB | J1 |
| 1 | XC6206PxxxMR | Package_TO_SOT_SMD:SOT-23-3 | U2 |
Questions
How big is the Cat32 PCB?
It measures 48 × 15 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cat32 use?
35 parts, built around the CH32V203G6U6. 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 Cat32 KiCad files?
From the acornitum/cat32 repository on GitHub, at the commit this page was made from: the board is cat32.kicad_pcb and its schematic cat32.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cat32 design in my own project?
Its repository states no licence, so its author keeps all rights: ask acornitum before reusing the design.
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