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STM32G431-Dev-Board

larshasstdas·STM32G431-Dev-Board·KiCad/Dev Board STM32G431.kicad_pcb

STM32G431-Dev-Board layout, top view — open source STM32 board by larshasstdas

About the STM32G431-Dev-Board

STM32G431-Dev-Board is an open source STM32 PCB design by larshasstdas, published on GitHub under the MIT license. It is a 2-layer board measuring 31.3 × 60.5 mm, with 36 components from 23 distinct parts.

Its main chip is the STM32G431CBTx, from the STM32 family. Other key parts include the USBLC6-2SC6 and LDO. By type, the board carries 15 capacitors, 6 resistors, 4 connectors, 3 ICs, 3 switches and 3 diodes.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

This is a custom dev board for a STM32G431

A custom development board for the STM32G431CBT6 that referrences the NUCLEO-32 STM32G4 series board as well a WeAct STM32F405 Board. They only have the schematics and i changed a lot as well.

I always had fun with designing PCBs but because the projects were always too expensive i never actually made them. I also have five STM32G431's laying around from a free samples and so i decided to design a development board for them.

STM32G431-Dev-Board, from the project README
From the project README

Main components on the STM32G431-Dev-Board

STM32G431CBTxUSBLC6-2SC6LDO

STM32G431-Dev-Board bill of materials (BOM)

36 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32G431CBTx
U1
1
USBLC6-2SC6
U2
1
LDO
U3
1
Crystal_GND24
Y1
1
Conn_02x04_Odd_Even
J1
1
USB_C_Receptacle_USB2.0_16P
J2
2
Conn_01x22
J3, J4
1
RST
SW1
1
BOOT
SW2
1
USER
SW3
1
D_TVS
D1
1
blue
D2
1
red
D3
1
600R@100MHz
L1
9
100n
C1, C4, C5, C6, C7, C9, C10, C14 +1
2
1u
C2, C8
1
4.7u
C3
1
10u
C11
2
6.8p
C12, C13
1
10k
R1
Show 3 more
QtyPartRefs
2
2.2k
R2, R4
1
1k
R3
2
5.1k
R5, R6

STM32G431-Dev-Board design files

The KiCad project lives in the larshasstdas/STM32G431-Dev-Board repository on GitHub; these links point at the commit this page was built from.

STM32G431-Dev-Board: common questions

What microcontroller does the STM32G431-Dev-Board use?

The STM32G431-Dev-Board is built around the STM32G431CBTx, from the STM32 family.

How big is the STM32G431-Dev-Board?

The STM32G431-Dev-Board measures 31.3 × 60.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the STM32G431-Dev-Board?

36 components, from 23 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the STM32G431-Dev-Board design files?

From the larshasstdas/STM32G431-Dev-Board repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the STM32G431-Dev-Board design in my own project?

Yes, under the terms of its MIT license, which larshasstdas chose for the repository.

Can I test firmware for the STM32G431-Dev-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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