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STM32G431

Jana-Marie·OtterControlNG·STM32G431/STM32G431.kicad_pcb

STM32G431 PCB layout, top view — open source STM32 board by Jana-Marie
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About the STM32G431 PCB

STM32G431 is an open source STM32 PCB design by Jana-Marie, published on GitHub under the CERN-OHL-1.2 license. It is a 4-layer board measuring 60 × 44 mm, with 154 components from 66 distinct parts.

Its main chip is the STM32G431CBUX, from the STM32 family. Other key parts include the MAX3051, ACT4088, XL7015, RS485 and MIC4605. By type, the board carries 58 capacitors, 50 resistors, 19 diodes, 12 ICs, 10 connectors and 3 inductors.

It belongs with the robotics & motion designs in this gallery.

From the project

Next generation of OtterControl.

STM32G431, from the project README
From the project README

Main components on the STM32G431

STM32G431CBUXMAX3051ACT4088XL7015RS485MIC4605USBLC6-4AMS1117-3.3

STM32G431 bill of materials (BOM)

154 components, 66 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32G431CBUX
STM32G431CBUx
U1
1
MAX3051
U2
1
ACT4088
U3
1
XL7015
U4
1
RS485
U5
3
MIC4605
U6, U7, U10
3
USBLC6-4
U8, U9, U11
1
AMS1117-3.3
AP2204R-3.3
U12
1
C8545
Q_NMOS_GSD
Q2
1
8MHZ
8Mhz
Y1
1
W
J1
1
U
J2
1
V
J3
1
GND
J4
1
VIN
J5
1
UART
J6
1
HALL
J8
1
AIN/PWM
J9
1
NTC
J10
1
LED
J11
Show 46 more
QtyPartRefs
1
SS310
D1
6
B5819W
1N5819WS
D2, D5, D6, D7, D10, D13
6
SM4007PL
B16WS
D3, D4, D8, D9, D11, D12
1
SM4007PL
B5819W
D14
1
SM4007PL
1N5819WS
D15
3
LED
D16, D18, D19
1
SK6812MINI
D17
1
C1015
FERRET
FB1
1
4U7
4u7
L1
1
100u 1A
L2
3
22UF
22uF
C1, C11, C12
6
DNP
C2, C3, C13, C14, C15, C16
2
18P
18p
C4, C5
14
100N
100n
C6, C18, C22, C24, C25, C26, C27, C28 +6
1
C106678
10u
C7
7
4U7
4u7
C8, C9, C10, C17, C47, C48, C49
1
100P
DNP
C19
1
33N
33n
C20
1
100n 100V
C21
5
10U
10u
C23, C36, C38, C41, C53
6
100P
100p
C29, C30, C31, C42, C44, C45
3
100n
C34, C54, C55
2
100P
100p
C39, C40
3
10NF
10nF
C50, C51, C52
3
10u
C56, C57, C58
4
22K
22k
R1, R8, R14, R16
6
2
R2, R3, R10, R11, R12, R13
4
100
R4, R5, R39, R45
1
100K
100k
R6
1
2.7K
2.7k
R7
3
2.2K
2.2k
R9, R15, R36
5
4K3
4k3
R17, R24, R26, R31, R32
3
1
R18, R22, R43
1
60
R19
2
47K
47k
R20, R37
1
1M
R21
3
100K
100k
R23, R25, R30
3
1.8K
1.8k
R27, R28, R29
3
10K
10k
R33, R34, R35
1
9K1
9k1
R38
3
1.5K
1.5k
R40, R41, R42
2
10
R44, R50
1
1k
R46
1
2k
R47
1
1k
R48
1
660
R49

STM32G431 design files

The KiCad project lives in the Jana-Marie/OtterControlNG repository on GitHub; these links point at the commit this page was built from.

STM32G431: common questions

What microcontroller does the STM32G431 use?

The STM32G431 is built around the STM32G431CBUX, from the STM32 family.

How big is the STM32G431 PCB?

The STM32G431 measures 60 × 44 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the STM32G431?

154 components, from 66 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 design files?

From the Jana-Marie/OtterControlNG repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the STM32G431 design in my own project?

Yes, under the terms of its CERN-OHL-1.2 license, which Jana-Marie chose for the repository.

Can I test firmware for the STM32G431 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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