BLDC Ver1
About the BLDC Ver1 PCB
BLDC Ver1 is an open source STM32 PCB design by Tomoshibi-technology, published on GitHub under the MIT license. It is a 2-layer board measuring 131.6 × 167 mm, with 165 components from 82 distinct parts.
Its main chip is the CH340E, from the STM32 family. Other key parts include the MPM3620AGQV-Z, MAX3485, 74LVC1G32, AZ1084CD-3.3 and STM32F446RETX. By type, the board carries 67 resistors, 39 capacitors, 22 diodes, 12 transistors, 7 ICs and 7 connectors.
It belongs with the robotics & motion designs in this gallery.
From the project
燈のプロダクト達を動かしている基板開発用リポジトリ
Main components on the BLDC Ver1
BLDC Ver1 bill of materials (BOM)
165 components, 82 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MPM3620AGQV-Z DCDC_MPM3620A | DCDC_MPM3620A | IC1 |
| 1 | CH340E STM32G473CET6 | LQFP-48_7x7mm_P0.5mm | U1 |
| 1 | MAX3485 | SOP-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | 74LVC1G32 MAX3485 | SOP-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | AZ1084CD-3.3 AZ1117CH-3.3 | SOT-223-3_TabPin2 | U4 |
| 1 | STM32F446RETX Encoder_Magnetic_AS5047P | TSSOP-14_4.4x5mm_P0.65mm | U5 |
| 1 | NJU72501_MODULE Driver_FETGate_DRV8323S | Driver_FETGate_DRV8323S | U6 |
| 1 | S8550 | SOT-23 | Q1 |
| 2 | SSM6J808R DI035P04PT | Package_TSON-Advance | Q2, Q6 |
| 2 | C2844873 BSS138 | SOT-23 | Q3, Q5 |
| 1 | SSM3J332R | SOT-23W | Q4 |
| 6 | TPN19008QM | Package_TSON-Advance | Q7, Q8, Q9, Q10, Q11, Q12 |
| 1 | 16MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | CONN_01X07_FEMALE Conn_01x14_Pin | BoxHeader_2x07_P1.27mm_Horizontal | J1 |
| 2 | CONN_01X02_FEMALE Conn_01x06_MountingPin | Molex_PicoBlade_53261-0671_1x06-1MP_P1.25mm_Horizontal | J2, J3 |
| 1 | CONN_01X02_FEMALE Conn_01x26_Socket | PinSocket_2x13_P1.27mm_Vertical | J4 |
| 1 | CONN_01X02_FEMALE Conn_01x02_Pin | Molex_SPOX_5268-02A_1x02_P2.50mm_Horizontal | J5 |
| 1 | USB_C_RECEPTACLE_USB2.0 Conn_01x03_Pin | Molex_SPOX_5268-03A_1x03_P2.50mm_Horizontal | J6 |
| 1 | CONN_01X10_FEMALE Conn_01x26_Pin | PinHeader_2x13_P1.27mm_Vertical | J7 |
| 1 | JUMPER_2_OPEN Jumper_2_Open | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1 |
Show 62 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Jumper_2_Open | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP2 |
| 1 | SolderJumper_2_Open | SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP3 |
| 1 | SW_DPDT_X2 SW_SPST | SW_Tactile_SPST_Angled_PTS645Vx39-2LFS | SW1 |
| 1 | SW_DIP_x02 | SW_DIP_SPSTx02_Slide_Copal_CHS-02B_W7.62mm_P1.27mm | SW2 |
| 1 | SW_SPDT | SW_Slide_DPDT_SSAJ120100 | SW3 |
| 1 | SW_DIP_X02 SW_SPDT | SW_Slide_SPDT_SSSS820101 | SW4 |
| 2 | TestPoint | TestPoint_THTPad_D2.0mm_Drill1.0mm | TP1, TP2 |
| 6 | 1N5819WS | D_SOD-323_HandSoldering | D1, D5, D7, D10, D11, D12 |
| 6 | Red | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2, D3, D13, D20, D21, D22 |
| 1 | MA10EB045 1N5819WS | D_SOD-323_HandSoldering | D4 |
| 7 | SS2040FL | D_SOD-123 | D6, D14, D15, D16, D17, D18, D19 |
| 2 | Green | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D8, D9 |
| 1 | 22uH | Inductor_CDPH4D19F | L1 |
| 3 | 0.1UF 0.1uF | C_0402_1005Metric | C1, C5, C11 |
| 2 | 10UF 0.1uF | C_0402_1005Metric | C2, C10 |
| 2 | 0.1UF 22pF | C_0603_1608Metric | C3, C4 |
| 2 | 4.7UF 0.1uF | C_0402_1005Metric | C6, C7 |
| 2 | 1UF 0.1uF | C_0402_1005Metric | C8, C25 |
| 1 | 22UF 4.7uF | C_0603_1608Metric | C9 |
| 1 | 0.1UF 10uF | C_1206_3216Metric | C12 |
| 1 | 1UF 22uF | C_0805_2012Metric | C13 |
| 1 | 1uF | C_0402_1005Metric | C14 |
| 3 | 0.1UF 1uF | C_0402_1005Metric | C15, C16, C22 |
| 1 | 0.1UF 0.1uF | C_0603_1608Metric | C19 |
| 2 | 0.1UF 10uF | C_0805_2012Metric | C20, C21 |
| 1 | 10uF | C_1206_3216Metric | C23 |
| 1 | 4.7UF 10uF | C_1206_3216Metric | C24 |
| 2 | 470UF 1uF | C_0402_1005Metric | C26, C27 |
| 1 | 470UF 47nF | C_0603_1608Metric | C28 |
| 1 | 470UF 0.1uF | C_0402_1005Metric | C29 |
| 1 | 1UF 330pF | C_0603_1608Metric | C30 |
| 2 | 0.1UF 330pF | C_0603_1608Metric | C31, C32 |
| 2 | 0.1UF CR_snub | C_0603_1608Metric | C33, C34 |
| 1 | 0.1UF C_snub | C_0603_1608Metric | C35 |
| 2 | C_snub | C_0603_1608Metric | C36, C39 |
| 4 | CR_snub | C_0603_1608Metric | C37, C38, C40, C41 |
| 16 | 10K 10k | R_0402_1005Metric | R1, R3, R8, R10, R19, R29, R30, R31 +8 |
| 2 | 10K 1k | R_0402_1005Metric | R2, R38 |
| 2 | 10K 2k | R_0402_1005Metric | R4, R36 |
| 1 | 5.1K 2k | R_0402_1005Metric | R5 |
| 1 | 5.1K 10k | R_0402_1005Metric | R6 |
| 6 | 10k | R_0402_1005Metric | R7, R18, R25, R27, R28, R55 |
| 1 | 10K 7.5k | R_0603_1608Metric | R9 |
| 4 | 10K 20k | R_0402_1005Metric | R11, R69, R72, R75 |
| 3 | 10K 2.2k | R_0402_1005Metric | R12, R14, R23 |
| 2 | 2.2k | R_0402_1005Metric | R13, R15 |
| 2 | 120 | R_0402_1005Metric | R16, R17 |
| 1 | 200k | R_0402_1005Metric | R20 |
| 1 | 100k | R_0402_1005Metric | R21 |
| 1 | 10K 12k | R_0402_1005Metric | R22 |
| 1 | 100K 10k | R_0402_1005Metric | R24 |
| 1 | 330 10k | R_0402_1005Metric | R26 |
| 1 | 10K 1k | R_0603_1608Metric | R33 |
| 1 | 10K 75k | R_0603_1608Metric | R34 |
| 1 | 10K 10k | R_0603_1608Metric | R35 |
| 1 | 2k | R_0402_1005Metric | R37 |
| 3 | 10K 100 | R_0603_1608Metric | R49, R50, R51 |
| 5 | 0 | R_0603_1608Metric | R52, R57, R58, R62, R63 |
| 1 | 10K 0 | R_0603_1608Metric | R53 |
| 2 | 7m | R_2512_6332Metric | R56, R61 |
| 1 | 10K 7m | R_2512_6332Metric | R66 |
| 6 | 10K CR_snub | R_0603_1608Metric | R67, R68, R70, R71, R73, R74 |
BLDC Ver1 design files
The KiCad project lives in the Tomoshibi-technology/Tomoshibi_Circuit repository on GitHub; these links point at the commit this page was built from.
BLDC Ver1: common questions
What microcontroller does the BLDC Ver1 use?
The BLDC Ver1 is built around the CH340E, from the STM32 family.
How big is the BLDC Ver1 PCB?
The BLDC Ver1 measures 131.6 × 167 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the BLDC Ver1?
165 components, from 82 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 BLDC Ver1 design files?
From the Tomoshibi-technology/Tomoshibi_Circuit 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 BLDC Ver1 design in my own project?
Yes, under the terms of its MIT license, which Tomoshibi-technology chose for the repository.
Can I test firmware for the BLDC Ver1 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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