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SoM V2

robotique-udes·Exo_Electric·ACE 2026/SoM/SoM_V2/SoM_V2.kicad_pcb

SoM V2 PCB layout, top view — open source ESP32 board by robotique-udes
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About the SoM V2 PCB

SoM V2 is an open source ESP32 PCB design by robotique-udes, published on GitHub under the GPL-2.0 license. It is a 4-layer board measuring 30 × 46.1 mm, with 44 components from 20 distinct parts.

Its main chip is the ESP32-S3-MINI-1U, from the ESP32 family. Other key parts include the TCA9546APWR, FT231XQ, SN65HVD230 and PCA9633DP1. By type, the board carries 20 resistors, 16 capacitors, 6 ICs, 1 transistor and 1 diode.

From the project

This repo contains all the information about the PCB and electrical schematics of Biogenius.

Main components on the SoM V2

TCA9546APWRFT231XQSN65HVD230PCA9633DP1ESP32-S3-MINI-1U

SoM V2 bill of materials (BOM)

44 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
~
U201
1
TCA9546APWR
U301
1
FT231XQ
U302
1
SN65HVD230
U305
1
PCA9633DP1
U401
1
ESP32-S3-MINI-1U
U501
1
MBT3904DW1T1G
Q501
1
SP0502BAJT
D303
2
10µF
C301, C501
6
0.1µF
C302, C304, C306, C307, C310, C502
4
1µF
C303, C305, C401, C503
2
47pF
C308, C309
1
100nF
C402
1
100n
C403
3
330
R201, R307, R308
8
1k
R301, R302, R303, R304, R309, R310, R401, R402
2
27
R305, R306
2
60
R311, R312
4
10k
R501, R502, R503, R504
1
1k
RN301

SoM V2 design files

The KiCad project lives in the robotique-udes/Exo_Electric repository on GitHub; these links point at the commit this page was built from.

SoM V2: common questions

What microcontroller does the SoM V2 use?

The SoM V2 is built around the ESP32-S3-MINI-1U, from the ESP32 family.

How big is the SoM V2 PCB?

The SoM V2 measures 30 × 46.1 mm, has 4 copper layers and is 0.8 mm thick.

How many components are on the SoM V2?

44 components, from 20 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 SoM V2 design files?

From the robotique-udes/Exo_Electric 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 SoM V2 design in my own project?

Yes, under the terms of its GPL-2.0 license, which robotique-udes chose for the repository.

Can I test firmware for the SoM V2 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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