Spinner
About the Spinner PCB
Spinner is an open source STM32 PCB design by enkhbold470, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 84 × 66 mm, with 83 components from 36 distinct parts.
Its main chip is the STM32G431KBT6, from the STM32 family. Other key parts include the AP63203WU-7, L78L12ABUTR, IR2104STRPBF, MT6701CT-STD and TCAN332GDR. By type, the board carries 34 capacitors, 18 resistors, 8 ICs, 7 diodes, 6 transistors and 5 connectors.
It belongs with the robotics & motion and test & measurement designs in this gallery.
From the project
Five KiCad 10 boards (4- and 6-layer): ESP32-S3 industrial gateway, USB-C PD bench supply, RP2040 logic analyzer, FOC motor controller, iCE40 FPGA board. KiCad projects, gerbers, BOM, STEP, renders and design-process videos.
A 12-24 V field-oriented-control BLDC motor controller: STM32G431, three IR2104 half bridges, MT6701 encoder, CAN FD.
Not fabricated, assembled or powered. Every number on this page is measured by KiCad 10 on the files in this folder; the full measurements are in report.json.
Spinner is a field-oriented-control (FOC) controller for a three-phase BLDC motor on a 12-24 V bus. An STM32G431 drives three IR2104 half bridges and six 60 V MOSFETs, reads low-side shunts through its own PGAs, and has an MT6701 magnetic encoder and CAN FD on the board. It was designed with the HeyPCB method on KiCad…
Main components on the Spinner
Spinner bill of materials (BOM)
83 components, 36 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AP63203WU-7 AP63203WU | TSOT-23-6 | U1 |
| 1 | L78L12ABUTR L78L12 | SOT-89-3 | U2 |
| 1 | STM32G431KBT6 | LQFP-32_7x7mm_P0.8mm | U3 |
| 3 | IR2104STRPBF IR2104S | SOIC-8_3.9x4.9mm_P1.27mm | U4, U5, U6 |
| 1 | MT6701CT-STD MT6701CT | SO-8_3.9x4.9mm_P1.27mm | U7 |
| 1 | TCAN332GDR TCAN332G | SOIC-8_3.9x4.9mm_P1.27mm | U8 |
| 6 | BSC028N06LS3 G BSC028N06LS3 | TDSON-8-1 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 1 | TAXM8M4RDBCCT2T 8MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | MX126-5.0-02P-GN01-Cu-S-A VIN 12-24V | TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J1 |
| 1 | PZ127VS-12-10-H10-A38 SWD | PinHeader_2x05_P1.27mm_Vertical_SMD | J2 |
| 1 | MX126-5.0-03P-GN01-Cu-S-A MOTOR | TerminalBlock_MaiXu_MX126-5.0-03P_1x03_P5.00mm | J3 |
| 2 | SM03B-GHS-TB(LF)(SN) CAN | JST_GH_SM03B-GHS-TB_1x03-1MP_P1.25mm_Horizontal | J4, J5 |
| 1 | PCM12SMTR TERM | SW_SPDT_PCM12 | SW1 |
| 1 | NCP18XH103F03RB 10k B3380 | R_0603_1608Metric | TH1 |
| 1 | SMAJ24A | D_SMA | D1 |
| 3 | B5819W SL B5819W | D_SOD-123 | D2, D3, D4 |
| 1 | KT-0603G Green (PWR) | LED_0603_1608Metric | D5 |
| 1 | KT-0603R Red (STAT) | LED_0603_1608Metric | D6 |
| 1 | XL-1608UOC-06 Orange (CAN) | LED_0603_1608Metric | D7 |
| 1 | BLM18PG121SN1D 120R@100MHz | L_0603_1608Metric | FB1 |
Show 16 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | FNR4030S3R9MT 3.9uH | L_Changjiang_FNR4030S | L1 |
| 2 | UCD1V221MNL1GS 220uF 35V | CP_Elec_8x10.5 | C1, C2 |
| 4 | GRM21BR61H106KE43L 10uF 50V | C_0805_2012Metric | C3, C19, C24, C29 |
| 11 | CC0603KRX7R9BB104 100nF | C_0603_1608Metric | C4, C9, C10, C11, C14, C20, C25, C30 +3 |
| 2 | CL21A226MAQNNNE 22uF | C_0805_2012Metric | C5, C6 |
| 9 | CL10A105KB8NNNC 1uF | C_0603_1608Metric | C7, C8, C12, C17, C18, C22, C23, C27 +1 |
| 1 | CL21A475KAQNNNE 4.7uF | C_0805_2012Metric | C13 |
| 2 | CL10C120JB8NNNC 12pF | C_0603_1608Metric | C15, C16 |
| 3 | CL10B102KB8NNNC 1nF | C_0603_1608Metric | C21, C26, C31 |
| 3 | 0603WAF4701T5E 4.7k | R_0603_1608Metric | R1, R14, R15 |
| 2 | 0603WAF1003T5E 100k | R_0603_1608Metric | R2, R13 |
| 3 | PA2512FKE7T0R01E 10mΩ | R_2512_6332Metric | R3, R6, R9 |
| 5 | 0603WAF1001T5E 1k | R_0603_1608Metric | R4, R7, R10, R17, R18 |
| 3 | 0603WAF3302T5E 33k | R_0603_1608Metric | R5, R8, R11 |
| 1 | 0603WAF1200T5E 120 | R_0603_1608Metric | R12 |
| 1 | 0603WAF2201T5E 2.2k | R_0603_1608Metric | R16 |
Spinner design files
The KiCad project lives in the enkhbold470/kicad-projects repository on GitHub; these links point at the commit this page was built from.
Spinner: common questions
What microcontroller does the Spinner use?
The Spinner is built around the STM32G431KBT6, from the STM32 family.
How big is the Spinner PCB?
The Spinner measures 84 × 66 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Spinner?
83 components, from 36 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 Spinner design files?
From the enkhbold470/kicad-projects 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 Spinner design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which enkhbold470 chose for the repository.
Can I test firmware for the Spinner 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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