PCMC control
About the PCMC control PCB
PCMC control is an open source STM32 PCB design by qiuniangdu, published on GitHub under the MIT license. It is a 4-layer board measuring 57.1 × 39.6 mm, with 90 components from 36 distinct parts.
Its main chip is the STM32G474CBTX, from the STM32 family. Other key parts include the INA240A1PW, INA139 and JW5026. By type, the board carries 34 capacitors, 27 resistors, 10 connectors, 7 ICs, 6 diodes and 2 inductors.
From the project
峰值电流控制PCB以及代码
- IDE: STM32CubeMX 6.17 + CLion / VSCode - 工具链: GCC ARM Embedded (arm-none-eabi-gcc) - 构建系统: CMake + Ninja - HAL 版本: STM32Cube FW G4 V1.6.3 - 编译器优化: -O0 (Debug)
Main components on the PCMC control
PCMC control bill of materials (BOM)
90 components, 36 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | STM32G474CBTX STM32G474CBTx | LQFP-48_7x7mm_P0.5mm | U1 |
| 3 | INA240A1PW | TSSOP-8_4.4x3mm_P0.65mm | U2, U3, U4 |
| 1 | INA139 | SOT-23-5 | U5 |
| 2 | JW5026 | SOT-23-6 | U6, U7 |
| 1 | CRYSTAL_GND24 Crystal_GND24 | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | CONN_01X04_MOUNTINGPIN Conn_01x04_MountingPin | JST_GH_BM04B-GHS-TBT_1x04-1MP_P1.25mm_Vertical | J1 |
| 1 | CONN_01X04_MOUNTINGPIN Conn_01x04_MountingPin | Molex_PicoBlade_53261-0471_1x04-1MP_P1.25mm_Horizontal | J2 |
| 3 | CONN_01X02_PIN Conn_01x02_Pin | AMASS_XT30U-F_1x02_P5.0mm_Vertical | J3, J4, J6 |
| 2 | CONN_01X02_SOCKET Conn_01x02_Socket | CONN-TH_XT30PW-M | J5, J7 |
| 1 | CONN_02X05_ROW_LETTER_FIRST Conn_02x05_Row_Letter_First | PinHeader_2x05_P2.00mm_Vertical_SMD | J8 |
| 2 | CONN_02X02_COUNTER_CLOCKWISE Conn_02x02_Counter_Clockwise | PinHeader_2x02_P2.00mm_Vertical | J9, J10 |
| 2 | RS3236 | SOT-23-5 | RS3236_U1, RS3236_U2 |
| 1 | SW_OMRON_B3FS SW_Omron_B3FS | SW_SPST_B3U-1000P | SW1 |
| 1 | SMAJ24CA SMAJ36CA | D_SMA | D1 |
| 4 | LED | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2, D3, D4, D5 |
| 1 | WS2812B | LED_WS2812B-Mini_PLCC4_3.5x3.5mm | D6 |
| 2 | 4.7U 4.7u | L_APV_ANR252012 | L1, L2 |
| 2 | 18P 18p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C4 |
| 1 | 100NF 100nf | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2 |
| 2 | 100N 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C3, C11 |
Show 16 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 3N3 3n3 | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5, C6 |
| 10 | 100N 100n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7, C8, C9, C10, C18, C20, C22, C23 +2 |
| 6 | 3.3NF 3.3nf | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C12, C13, C14, C15, C16, C17 |
| 4 | 4.7U 4.7u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C19, C21, C31, C33 |
| 4 | 10U 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C24, C25, C30, C32 |
| 2 | 10N 10n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C27, C29 |
| 1 | 220UF 220uf | CP_P3.5mm | C34 |
| 6 | 10K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R22, R23, R24, R25, R26 |
| 2 | 33kΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3 |
| 8 | 2.2kΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5, R12, R13, R14, R15, R16, R18 |
| 5 | 120 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R7, R8, R9, R27 |
| 2 | 2mΩ | mΩ | R10, R17 |
| 1 | 20kΩ | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11 |
| 1 | 1.5K 1.5k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R19 |
| 1 | 21K 21k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R20 |
| 1 | 2k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R21 |
PCMC control design files
The KiCad project lives in the qiuniangdu/PCMC repository on GitHub; these links point at the commit this page was built from.
PCMC control: common questions
What microcontroller does the PCMC control use?
The PCMC control is built around the STM32G474CBTX, from the STM32 family.
How big is the PCMC control PCB?
The PCMC control measures 57.1 × 39.6 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the PCMC control?
90 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 PCMC control design files?
From the qiuniangdu/PCMC 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 PCMC control design in my own project?
Yes, under the terms of its MIT license, which qiuniangdu chose for the repository.
Can I test firmware for the PCMC control 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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