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STM32 Pro Mini dev board
- 17.8 x 33mm size (excluding USB port)
- 28 GPIOs
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Based on STM32F411CEU6 MCU (100MHz ARM Cortex M4 CPU, 512kB Flash, 128kB SRAM) or STM32F103CxT6 MCU (72MHz ARM Cortex M3 CPU, 64kB/128kB Flash, 20kB SRAM)
- Virtually support all 48 pin packaged(LQFP48, UFQFPN48, ...) STM32 MCUs.
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Two main devices are being supported as of now, one with STM32F103Cx and the other with STM32F411Cx.
- You can manufacture your own STM32 Pro Mini board with provided files in this repo.
- Use gerber files in fabrication/gerber/v6 directory.
- Use BOM and CPL(Pick&Place) files included in fabrication directory.
- Recommended board specifications:
- Material: FR-4
- Layers: 2
- PCB color / silk color: Any
- Thickness: 1.0mm
- Surface finish: ENIG
- All parts can be placed with included BOM/CPL file.
- Leave an issue and I may send you a free STM32 Pro Mini board.
| Gen | CPU | Versions | Features | Board peripheral | Default BOOT configuration |
|---|---|---|---|---|---|
| 1 | STM32F103Cx | V1 (STM32F103C8), V3 (STM32F103CB) | 8MHz ±20ppm HSE, Compatible with common 'Blue Pill' development boards. | None | BOOT0 (0) BOOT1 (0) |
| 2 | STM32F411CE | V2 | 8MHz ±20ppm HSE | Removable USB port | BOOT0 (0) BOOT1 (0) |
| 3 | STM32F411CE | V4, V5, V6 | 12MHz ±10ppm HSE, 32.768kHz ±20ppm LSE (V5, V6), A dedicated analog power rail with noise supression (V5, V6), Castellated edges (V6 only) | Removable USB port | BOOT0 (0) BOOT1 (0) |
- Fully redesigned STM32 Pro Mini dev board
- A dedicated analog voltage supply for noise reduction (from V5 and afterwards)
- Ultra low noise, low Iq LDO regulator added to minimize static power draw. (from V5 and afterwards)
- LSE crystal added (from V5 and afterwards)
- PB11 pin is removed and additional GND pin is added.
- Based on STM32F411CEU6 MCU
- PB11 is disabled in this variant, being used to connect a capacitor to supply internal voltage.
- 2.2uF or 4.7uF ceramic capacitor with low ESR have to placed on C13.
- USB pull-up resistor R1 is not needed. (The MCU integrates pull-up resistor for USB D+.)
- Based on STM32F103C8T6 (V1) / STM32F103CBT6 (V3) MCU
- Compatible with common Blue Pill development board with STM32F103C8T6, except for absence of 32.768kHz crystal.
- C13 is not needed in F103 variant.
- An 1.5k pull-up resistor R1 for USB D+ is needed.
- Install STM32duino package along with STM32CubeProgrammer.
- Add
./variants/PROMINI_F411(V3-V4) or./variants/PROMINI_F411_V5(V5, V6) directory to Arduino IDEpackages/STM32/hardware/stm32/(version)/variantsdirectory. - Add the content of
boards-add.txttopackages/STM32/hardware/stm32/(version)/boards.txt.
- USB HID bootloader fork may be used to upload using the integrated USB port.