SDM26 SteeringWheel V1.1
sundevilmotorsports·pcb-dev·2026/SteeringWheel/SDM26_SteeringWheel_V1.1/SDM26_SteeringWheel_V1.1.kicad_pcb
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.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-S3-WROOM-1-N8R8 | ESP32S3WROOM1N8R8 | IC1 |
| 1 | CP2102N-A02-GQFN28 | QFN50P500X500X80-29N-D | IC3 |
| 1 | TLP175A(TPL,E TLP175A_TPL,E | TLP266J | IC4 |
| 1 | MIC37100-3.3WS | SOT230P700X180-4N | IC5 |
| 1 | TPS2116DRLR | SOTFL50P160X60-8L | IC6 |
| 1 | SN74AHC1G125DBVR | SOT95P280X145-5L | IC9 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U1 |
| 1 | SN65HVD230 | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | EMIF06-MSD02N16 | UQFN-17-3.5x1.2mm | U10 |
| 2 | MMBT2222LT1G | SOT96P237X111-3N | Q1, Q2 |
| 1 | Conn_01x02 | JST_EH_S2B-EH_1x02_P2.50mm_Horizontal | J1 |
| 1 | CONN_01X04_SOCKET Conn_01x02 | JST_EH_S2B-EH_1x02_P2.50mm_Horizontal | J2 |
| 1 | ESP_USB | USB_Micro-B_Molex-105017-0001 | J3 |
| 3 | Conn_01x04_Socket | JST_XH_S4B-XH-A_1x04_P2.50mm_Horizontal | J4, J5, J8 |
| 1 | Conn_01x02_Pin | JST_XH_S2B-XH-A_1x02_P2.50mm_Horizontal | J6 |
| 1 | Molex_1040310811 | microSD_HC_Molex_104031-0811 | J7 |
| 2 | MHPS2285V | MHPS2285V | S1, S2 |
| 3 | PCW1J-B24-KEB103L | PCW1JB24KEB103L | VR1, VR2, VR3 |
| 2 | P091N-2QC20BR10K | P091N2QC20BR10K | VR4, VR5 |
| 1 | 150060GS75000 | LEDC1608X80N | LED1 |
Show 27 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 150060RS75000 | LEDC1608X80N | LED2 |
| 1 | 150060GS75000 Amazon LED | LED_RGB_5050-6 | LED3 |
| 5 | Amazon LED | LED_RGB_5050-6 | LED4, LED5, LED6, LED7, LED8 |
| 1 | ESDCAN03-2BWY | SOT65P210X110-3N | D1 |
| 1 | 100NF 10uF | C_0603_1608Metric | C1 |
| 1 | 1UF 100nF | C_0603_1608Metric | C2 |
| 2 | 100NF 1uF | C_0603_1608Metric | C3, C9 |
| 1 | 1UF 1uF | C_0603_1608Metric | C6 |
| 1 | 4.7UF 4.7uF | C_0603_1608Metric | C7 |
| 1 | 4.7UF 100nF | C_0603_1608Metric | C8 |
| 1 | 10UF 100nF | C_0603_1608Metric | C10 |
| 6 | 100nF | C_0603_1608Metric | C11, C13, C17, C18, C23, C26 |
| 2 | 1uF | C_0603_1608Metric | C12, C16 |
| 2 | 10uF | C_0603_1608Metric | C14, C15 |
| 3 | 10K 10k | R_0603_1608Metric | R1, R14, R15 |
| 1 | 10K 5.05 | R_0603_1608Metric | R2 |
| 5 | 10k | R_0603_1608Metric | R3, R5, R8, R19, R20 |
| 1 | 47.5K 10k | R_0603_1608Metric | R9 |
| 1 | 220 27 | R_0603_1608Metric | R12 |
| 1 | 5.05 27 | R_0603_1608Metric | R13 |
| 1 | 22.1K | R_0603_1608Metric | R16 |
| 1 | 1k | R_0603_1608Metric | R17 |
| 1 | 47.5K | R_0603_1608Metric | R18 |
| 1 | 120 | R_0603_1608Metric | R21 |
| 5 | 220 | R_0603_1608Metric | R22, R27, R28, R49, R54 |
| 7 | 100 | R_0603_1608Metric | R25, R42, R43, R44, R45, R46, R47 |
| 1 | 0 | R_0603_1608Metric | 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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