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ESC v2

22060·2026·kicad/ESC_v2/ESC_v2.kicad_pcb

ESC v2 PCB layout, top view — open source STM32 board by 22060
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About the ESC v2 PCB

ESC v2 is an open source STM32 PCB design by 22060, published on GitHub. It is a 4-layer board measuring 50 × 50 mm, with 124 components from 30 distinct parts.

Its main chip is the STM32G431CBUX, from the STM32 family. Other key parts include the L6387, AMS1117-3.3, ACS711XEXLT-15AB, BD4104 and AMS1117-5.0. By type, the board carries 47 capacitors, 43 resistors, 14 ICs, 12 transistors and 6 diodes.

Main components on the ESC v2

L6387AMS1117-3.3ACS711XEXLT-15ABBD4104AMS1117-5.0LM2937XMPSTM32G431CBUX

ESC v2 bill of materials (BOM)

124 components, 30 distinct parts — part numbers from the project's BOM.

QtyPartRefs
6
L6387
U1, U2, U3, U4, U5, U6
1
AMS1117-3.3
U7
3
ACS711XEXLT-15AB
ACS711xEXLT-15AB
U8, U9, U12
1
BD4104
U10
1
AMS1117-5.0
U11
1
LM2937XMP
LM2937xMP
U13
1
STM32G431CBUX
STM32G431CBUx
U19
12
RH6L040BGTB1
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +4
2
SW_Push
NRST1, button1
1
1N5819WS
D2
4
LED
D13, D15, D16, D17
1
WS2812B
D14
12
1u
C1, C3, C5, C9, C10, C17, C21, C33 +4
16
0.1U
0.1u
C2, C4, C6, C7, C8, C11, C12, C13 +8
3
10U
10u
C16, C19, C20
2
10UF
10uF
C25, C29
2
22UF
22uF
C26, C30
1
0.47UF
0.47uF
C27
11
22UF
22uF
C28, C40, C41, C42, C43, C44, C45, C46 +3
12
22
R1, R2, R7, R8, R13, R14, R15, R16 +4
Show 10 more
QtyPartRefs
14
10K
10k
R3, R4, R5, R6, R9, R10, R17, R18 +6
1
120
R43
3
5m
R44, R45, R51
3
1.5K
1.5k
R46, R47, R52
3
68K
68k
R48, R49, R54
3
2.2K
2.2k
R50, R53, R55
1
4.7K
4.7k
R56
1
2.4K
2.4k
R57
1
1k
R58
1
660
R59

ESC v2 design files

The KiCad project lives in the 22060/2026 repository on GitHub; these links point at the commit this page was built from.

ESC v2: common questions

What microcontroller does the ESC v2 use?

The ESC v2 is built around the STM32G431CBUX, from the STM32 family.

How big is the ESC v2 PCB?

The ESC v2 measures 50 × 50 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ESC v2?

124 components, from 30 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 ESC v2 design files?

From the 22060/2026 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 ESC v2 design in my own project?

The repository has no license, so all rights stay with 22060. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESC v2 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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