2 layers26 × 30 mm
Microcontroller
FrameworkComputer/ExpansionCards
Reference designs and documentation to create Expansion Cards for the Framework Laptop
34 parts1.1kCC-BY-4.0
2 layers
Stm32-board
chalcosoma/stm32-dev-board- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 57
- Pads
- 105
- Tracks, vias
- 35, 0
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 27 Oct 2026
- Updated
- 27 Oct 2026
Overview
Stm32-board is an open-source printed circuit board by chalcosoma, from the chalcosoma/stm32-dev-board repository on GitHub. It is a 2-layer board with 15 parts on 57 nets, routed with 35 tracks and 0 vias.
It is built around the AP2112K-3.3. Its parts include 10 capacitors, 2 resistors, 2 ICs and 1 connector. It belongs with the STM32 boards of this library.
Main components
1README
README.mdSTM32 dev board
STM32 dev board
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4, C5 |
| 2 | 10 µf | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2 |
| 2 | 10nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7, C9 |
| 2 | 1µF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8, C10 |
| 2 | 5.1 kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 1 | 4.7µF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | STM32G431CBTx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | USB_C_Receptacle | Connector_USB:USB_C_Receptacle_Molex_105450-0101 | J1 |
Questions
What parts does the Stm32-board use?
15 parts, built around the AP2112K-3.3. 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 Stm32-board KiCad files?
From the chalcosoma/stm32-dev-board repository on GitHub, at the commit this page was made from: the board is stm32-board.kicad_pcb and its schematic stm32-board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Stm32-board design in my own project?
Its repository states no licence, so its author keeps all rights: ask chalcosoma before reusing the design.
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