HardLabs

Board a

ruckusmattster·xtm-led-driver·layout/out/board_a/board_a.kicad_pcb

Board a layout, top view — open source STM32 board by ruckusmattster

About the Board a

Board a is an open source STM32 PCB design by ruckusmattster, published on GitHub under the MIT license. It is a 4-layer board measuring 90 × 60 mm, with 173 components from 59 distinct parts.

Its main chip is the STM32G431CBU6, from the STM32 family. Other key parts include the LMR38020FDDAR, TPS7A2050PDBVR, LDL1117S33R, DAC80504RTET and OPA4388IPWR. By type, the board carries 79 resistors, 62 capacitors, 8 transistors, 7 ICs, 4 connectors and 4 diodes.

It belongs with the iot & wireless designs in this gallery.

From the project

A HDR LED driver with ESPHome integration focused on driving a 36V 1.4A LED

These scripts turn the two netlists in design/ into finished KiCad 9 boards and JLCPCB files, without anyone drawing the layout by hand. For each board they:

1. build the outline, mounting holes, slots and keep-outs, and place every part: the connectors, ICs and power parts at fixed coordinates, the small parts next to the pins they serve; 2. draw the copper that decides whether the board works before anything is routed: both switch nodes and bootstrap links (L1 only, no vias), the fused 48 V input and the +48V trunk to the buck, Q1's source to its shunt, the ch2 shunt ladder's bus bars, the…

Main components on the Board a

STM32G431CBU6LMR38020FDDARTPS7A2050PDBVRLDL1117S33RDAC80504RTETOPA4388IPWR

Board a bill of materials (BOM)

173 components, 59 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32G431CBU6
U1
2
LMR38020FDDAR
U2, U3
1
TPS7A2050PDBVR
U4
1
LDL1117S33R
U5
1
DAC80504RTET
U6
1
OPA4388IPWR
U7
1
NDT3055L
Q1
5
2N7002BK
Q2, Q5, Q6, Q7, Q8
2
2N7002
Q3, Q4
2
MSTBA 2,5/2-G-5,08
J1, J2
1
2x5 box header
J3
1
STDC14
J4
1
3A T
F1
4
C13564
10k NTC
RT1, RT2, RT3, RT4
1
SMBJ58A
D1
1
SMBJ43A
D2
1
BAV199
D3
1
C12624
green
D4
1
C1017
600R@100MHz
FB1
1
C98308
600R@100MHz 2A
FB2
Show 39 more
QtyPartRefs
1
33UH
33uH
L2
1
15UH
15uH
L3
1
C87862
47uF 100V
C1
6
10NF
10nF
C2, C31, C80, C81, C82, C83
15
100NF
100nF
C3, C11, C14, C16, C23, C41, C43, C50 +7
7
C2167998
4.7uF 100V
C4, C20, C21, C24, C25, C26, C27
3
100nF 100V
C5, C22, C28
3
22UF
22uF
C6, C7, C8
6
1UF
1uF
C9, C15, C42, C48, C51, C75
3
4.7UF
4.7uF
C10, C12, C74
2
10UF
10uF
C13, C79
1
47NF
47nF
C30
1
220NF
220nF
C40
4
10nF C0G
C44, C45, C46, C47
4
2.2nF C0G
C52, C53, C54, C55
5
1nF C0G
C56, C57, C58, C59, C61
1
22nF 100V
C60
17
100K
100k
R1, R6, R10, R16, R72, R73, R74, R75 +9
1
6.2K
6.2k
R2
1
280K
280k
R3
8
10K
10k
R4, R44, R53, R120, R126, R127, R128, R129
1
52.3K
52.3k
R5
1
22.1K
22.1k
R7
1
64.9K
64.9k
R11
1
200K
200k
R12
1
7.32K
7.32k
R13
2
8.25K
8.25k
R14, R15
2
1M
R17, R110
1
82K
82k
R18
4
22R
R40, R41, R42, R43
4
12.0k 0.1%
R45, R47, R49, R51
4
C110774
1.00k 0.1%
R46, R48, R50, R52
6
1k
R54, R60, R61, R62, R63, R125
4
1.82M
R64, R65, R66, R67
4
220R
R68, R69, R70, R71
11
10R 0.1%
R90, R91, R92, R93, R94, R95, R96, R97 +3
1
100R 0.1%
R101
1
0.1R 4T
R102
3
100R
R121, R122, R124

Board a design files

The KiCad project lives in the ruckusmattster/xtm-led-driver repository on GitHub; these links point at the commit this page was built from.

Board a: common questions

What microcontroller does the Board a use?

The Board a is built around the STM32G431CBU6, from the STM32 family.

How big is the Board a?

The Board a measures 90 × 60 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Board a?

173 components, from 59 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 Board a design files?

From the ruckusmattster/xtm-led-driver repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Board a design in my own project?

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

Can I test firmware for the Board a 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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