MCU Prototype
About the MCU Prototype PCB
MCU Prototype is an open source STM32 PCB design by pawel-dzialo, published on GitHub. It is a 4-layer board measuring 71.5 × 69.5 mm, with 30 components from 23 distinct parts.
Its main chip is the STM32L431RCT6, from the STM32 family. Other key parts include the LD1117S33CTR, BLUENRG-M0A and ADuM1200AR. By type, the board carries 13 capacitors, 8 connectors, 4 ICs, 2 switches, 1 fuse and 1 diode.
Main components on the MCU Prototype
MCU Prototype bill of materials (BOM)
30 components, 23 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LD1117S33CTR | SOT223 | U1 |
| 1 | BLUENRG-M0A | ST_SPBTLE | U2 |
| 1 | ADuM1200AR | SOIC127P600X175-8N | U3 |
| 1 | STM32L431RCT6 | LQFP-64_10x10mm_P0.5mm | U4 |
| 1 | UART | PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | Battery | JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J2 |
| 1 | SWD | PinHeader_1x06_P2.54mm_Vertical | J3 |
| 1 | USB_A | USBA | J4 |
| 1 | PIN1-PIN16 | PinHeader_2x08_P2.54mm_Vertical | J5 |
| 1 | PIN17-PIN32 | PinHeader_2x08_P2.54mm_Vertical | J6 |
| 1 | PIN33-PIN48 | PinHeader_2x08_P2.54mm_Vertical | J7 |
| 1 | PIN49-PIN64 | PinHeader_2x08_P2.54mm_Vertical | J8 |
| 1 | Fuse | Fuse_Rad | F1 |
| 1 | SW_DPDT_x2 | Switch | SW1 |
| 1 | SW_Push | Button | SW2 |
| 1 | LED | LED | D1 |
| 5 | 100n | C_0805_2012Metric | C1, C5, C6, C7, C8 |
| 1 | 10u | CP_Radial_D5.0mm_P2.00mm | C2 |
| 1 | 10n | C_0805_2012Metric | C3 |
| 4 | 4.7u | CP_Radial_D5.0mm_P2.00mm | C9, C10, C12, C13 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 0.1u | C_0805_2012Metric | C11 |
| 1 | 1u | CP_Radial_D5.0mm_P2.00mm | C15 |
| 1 | R_Small | R_0805_2012Metric | R1 |
MCU Prototype design files
The KiCad project lives in the pawel-dzialo/D7039E-E7032E-report repository on GitHub; these links point at the commit this page was built from.
MCU Prototype: common questions
What microcontroller does the MCU Prototype use?
The MCU Prototype is built around the STM32L431RCT6, from the STM32 family.
How big is the MCU Prototype PCB?
The MCU Prototype measures 71.5 × 69.5 mm, has 4 copper layers and is 4.69 mm thick.
How many components are on the MCU Prototype?
30 components, from 23 distinct parts. The full bill of materials is listed on this page.
Where can I download the MCU Prototype design files?
From the pawel-dzialo/D7039E-E7032E-report repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the MCU Prototype design in my own project?
The repository has no license, so all rights stay with pawel-dzialo. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the MCU Prototype 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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