Stm32-board
facens-omegabotz·stm32-board
About the Stm32-board
Stm32-board is an open source STM32 PCB design by facens-omegabotz, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 66 × 26 mm, with 27 components from 16 distinct parts.
Its main chip is the STM32F446RCTx, from the STM32 family. Other key parts include the NCP1117. By type, the board carries 14 capacitors, 4 connectors, 2 ICs, 2 switches, 2 resistors and 1 crystal.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
KiCad Projet of PCB design for a development board for the STM32f446 MCU
PCB design of a development board for the STM32f446 MCU

Main components on the Stm32-board
Stm32-board bill of materials (BOM)
27 components, 16 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | NCP1117 | SOT-223-3_TabPin2 | U1 |
| 1 | STM32F446RCTx | LQFP-64_10x10mm_P0.5mm | U2 |
| 1 | Crystal_GND24 | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | USB_B_Micro | USB_Micro-B_Wuerth_629105150521 | J1 |
| 1 | Serial_Wire | PinHeader_1x04_P2.54mm_Vertical | J2 |
| 2 | Conn_01x20_Male | PinHeader_1x20_P2.54mm_Vertical | J3, J4 |
| 1 | SW_Push | SW_Push_1P1T_NO_Vertical_Wuerth_434133025816 | SW1 |
| 1 | SW_SPDT | SW_SPDT_PCM12 | SW2 |
| 1 | PWR_LED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1 |
| 1 | 120R | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1 |
| 3 | 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3 |
| 7 | 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4, C5, C6, C7, C8, C9, C12 |
| 2 | 1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10, C11 |
| 2 | C | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C13, C14 |
| 1 | 1K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
Stm32-board design files
The KiCad project lives in the facens-omegabotz/stm32-board repository on GitHub; these links point at the commit this page was built from.
- LayoutSTM32-udemy.kicad_pcb
- SchematicSTM32-udemy.kicad_sch
Stm32-board: common questions
What microcontroller does the Stm32-board use?
The Stm32-board is built around the STM32F446RCTx, from the STM32 family.
How big is the Stm32-board?
The Stm32-board measures 66 × 26 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Stm32-board?
27 components, from 16 distinct parts. The full bill of materials is listed on this page.
Where can I download the Stm32-board design files?
From the facens-omegabotz/stm32-board repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Stm32-board design in my own project?
Yes, under the terms of its Apache-2.0 license, which facens-omegabotz chose for the repository.
Can I test firmware for the Stm32-board without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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