SDM26 SteeringWheel V1.1

sundevilmotorsports·pcb-dev·2026/SteeringWheel/SDM26_SteeringWheel_V1.1/SDM26_SteeringWheel_V1.1.kicad_pcb

SDM26 SteeringWheel V1.1 PCB layout, top view — open source ESP32 board by sundevilmotorsports
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About the SDM26 SteeringWheel V1.1 PCB

SDM26 SteeringWheel V1.1 is an open source ESP32 PCB design by sundevilmotorsports, published on GitHub. It is a 4-layer board measuring 182.9 × 134 mm, with 82 components from 47 distinct parts.

Its main chip is the ESP32-S3-WROOM-1-N8R8, from the ESP32 family. Other key parts include the CP2102N-A02-GQFN28, TLP175A(TPL,E, MIC37100-3.3WS, TPS2116DRLR and SN74AHC1G125DBVR. By type, the board carries 29 resistors, 18 capacitors, 9 ICs, 8 connectors, 8 LEDs and 2 transistors.

From the project

PCB development repository

Main components on the SDM26 SteeringWheel V1.1

SDM26 SteeringWheel V1.1 bill of materials (BOM)

82 components, 47 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32-S3-WROOM-1-N8R8
IC1
1
CP2102N-A02-GQFN28
IC3
1
TLP175A(TPL,E
TLP175A_TPL,E
IC4
1
MIC37100-3.3WS
IC5
1
TPS2116DRLR
IC6
1
SN74AHC1G125DBVR
IC9
1
USBLC6-2SC6
U1
1
SN65HVD230
U2
1
EMIF06-MSD02N16
U10
2
MMBT2222LT1G
Q1, Q2
1
Conn_01x02
J1
1
CONN_01X04_SOCKET
Conn_01x02
J2
1
ESP_USB
J3
3
Conn_01x04_Socket
J4, J5, J8
1
Conn_01x02_Pin
J6
1
Molex_1040310811
J7
2
MHPS2285V
S1, S2
3
PCW1J-B24-KEB103L
VR1, VR2, VR3
2
P091N-2QC20BR10K
VR4, VR5
1
150060GS75000
LED1
Show 27 more
QtyPartRefs
1
150060RS75000
LED2
1
150060GS75000
Amazon LED
LED3
5
Amazon LED
LED4, LED5, LED6, LED7, LED8
1
ESDCAN03-2BWY
D1
1
100NF
10uF
C1
1
1UF
100nF
C2
2
100NF
1uF
C3, C9
1
1UF
1uF
C6
1
4.7UF
4.7uF
C7
1
4.7UF
100nF
C8
1
10UF
100nF
C10
6
100nF
C11, C13, C17, C18, C23, C26
2
1uF
C12, C16
2
10uF
C14, C15
3
10K
10k
R1, R14, R15
1
10K
5.05
R2
5
10k
R3, R5, R8, R19, R20
1
47.5K
10k
R9
1
220
27
R12
1
5.05
27
R13
1
22.1K
R16
1
1k
R17
1
47.5K
R18
1
120
R21
5
220
R22, R27, R28, R49, R54
7
100
R25, R42, R43, R44, R45, R46, R47
1
0
R26

SDM26 SteeringWheel V1.1 design files

The KiCad project lives in the sundevilmotorsports/pcb-dev repository on GitHub; these links point at the commit this page was built from.

SDM26 SteeringWheel V1.1: common questions

What microcontroller does the SDM26 SteeringWheel V1.1 use?

The SDM26 SteeringWheel V1.1 is built around the ESP32-S3-WROOM-1-N8R8, from the ESP32 family.

How big is the SDM26 SteeringWheel V1.1 PCB?

The SDM26 SteeringWheel V1.1 measures 182.9 × 134 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the SDM26 SteeringWheel V1.1?

82 components, from 47 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 SDM26 SteeringWheel V1.1 design files?

From the sundevilmotorsports/pcb-dev 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 SDM26 SteeringWheel V1.1 design in my own project?

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

Can I test firmware for the SDM26 SteeringWheel V1.1 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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Earlier revisions in the repo: SDM26_SteeringWheel_V1.0

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