Steering wheel
About the Steering wheel PCB
Steering wheel is an open source STM32 PCB design by formulaslug, published on GitHub. It is a 2-layer board measuring 106.4 × 142 mm, with 63 components from 36 distinct parts.
Its main chip is the STM32G441KBT6, from the STM32 family. Other key parts include the AP63205WU-7, MIC5504-3.3YM5-TR, ISO1044BDR, BT817Q-R and AP3019AKTR-G1. By type, the board carries 29 capacitors, 14 resistors, 6 ICs, 6 connectors, 4 switches and 3 inductors.
From the project
Electrical Design Repository for fs-4 schematics and PCBs
Please complete KiCad training before beginning or working on any projects in this repository.
Only edit another person's work if you have spoke about it with them first and they have given you permission. This applies to Leads and Captains as well.
Contact Cole Lewis, Nathaniel Platt, or Wesley Rodriguez Kronmiller or Jack Nystrom for information/help relating to this repository.
Main components on the Steering wheel
Steering wheel bill of materials (BOM)
63 components, 36 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AP63205WU-7 AP63205WU | TSOT-23-6 | U1 |
| 1 | MIC5504-3.3YM5-TR MIC5504-3.3YM5 | SOT-23-5 | U2 |
| 1 | ISO1044BDR ISO1044BD | SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | BT817Q-R BT817Q | VQFN-64-1EP_9x9mm_P0.5mm_EP7.15x7.15mm | U4 |
| 1 | STM32G441KBT6 STM32G441KBTx | LQFP-32_7x7mm_P0.8mm | U5 |
| 1 | AP3019AKTR-G1 AP3019AKTR | SOT-23-6 | U7 |
| 1 | ECS-240-8-37B-CKY-TR | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | 985 Keystone 985 RJ45 | Keystone_985 | J1 |
| 1 | FTSH-107-01-F-DV-K-P-TR | PinHeader_2x07_P1.27mm_Vertical_SMD | J2 |
| 3 | 1054301202 Nanofit 01x02 Right Angle | Nanofit-1054301202-1x2SMD90Deg | J3, J5, J6 |
| 1 | F32D-1A7Y1-21040 Conn_01x40 | CONN_F32D-1A7Y1-21040_AMP | J4 |
| 3 | KC14A10.001NPS | KC14A10001NPS | S1, S2, S3 |
| 1 | Y97KT23B5NAFP | SW_SPST_PTS647_Sx38 | SW1 |
| 1 | FCM 1608KF-601T03 | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1 |
| 1 | SRP5030TA-4R7M 4.7u Bourns | L_Bourns_SRP5030T | L1 |
| 1 | CDRH5D28NP-220NC 22u | CDRH5D28NP-220NC | L2 |
| 1 | CL21A106KOQNNNG 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 10 | GCJ188R71H104KA12D 100n | C_0603_1608Metric | C2, C6, C7, C8, C11, C12, C13, C14 +2 |
| 1 | CL21A476MQYNNNE 47u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 4 | CL10B105KP8NNNC 1u | C_0603_1608Metric | C4, C5, C9, C26 |
Show 16 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CL10A106KO8NQNC 10u | C_0603_1608Metric | C10 |
| 2 | CC0603DRNPO9BN6R8 6.8pF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C16, C17 |
| 1 | CL10A106KO8NQNC 10u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C19 |
| 2 | CC0603KRX7R9BB104 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C20, C21 |
| 1 | CL10B105KB9VPJC 1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C22 |
| 1 | CC0603KRX7R9BB104 100nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C23 |
| 1 | C1608X7R1H224K080AE 220n | C_0603_1608Metric | C24 |
| 1 | CL10B105KA8NNNC 1u | C_0603_1608Metric | C25 |
| 3 | CL10B105KP8NNNC 68n | C_0603_1608Metric | C27, C28, C29 |
| 4 | RC0603FR-0710KL 10k | R_0603_1608Metric | R1, R4, R7, R8 |
| 1 | RC0603FR-074K7L 4.7k | R_0603_1608Metric | R2 |
| 3 | RMCF0603FT100K 100k | R_0603_1608Metric | R3, R5, R6 |
| 3 | RMCF0603FT3K00 11k | R_0603_1608Metric | R9, R10, R12 |
| 1 | RK73H2ETTD4R99F 4.99 | R_1210_3225Metric | R11 |
| 1 | RMCF0603FT3K00 3k | R_0603_1608Metric | R17 |
| 1 | RC0603FR-07120RL 120 | R_0603_1608Metric | R18 |
Steering wheel design files
The KiCad project lives in the formulaslug/fs-4-schematics repository on GitHub; these links point at the commit this page was built from.
Steering wheel: common questions
What microcontroller does the Steering wheel use?
The Steering wheel is built around the STM32G441KBT6, from the STM32 family.
How big is the Steering wheel PCB?
The Steering wheel measures 106.4 × 142 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Steering wheel?
63 components, from 36 distinct parts. The full bill of materials is listed on this page.
Where can I download the Steering wheel design files?
From the formulaslug/fs-4-schematics repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Steering wheel design in my own project?
The repository has no license, so all rights stay with formulaslug. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Steering wheel 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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