MINI4
About the MINI4 PCB
MINI4 is an open source STM32 PCB design by antonchromjak, published on GitHub. It is a 4-layer board measuring 65 × 18 mm, with 151 components from 32 distinct parts.
Its main chip is the STM32F40X_LQFP64, from the STM32 family. Other key parts include the LM5113, AD8418, LMR16006 and MCP1700. By type, the board carries 90 capacitors, 31 resistors, 10 ICs, 9 connectors, 6 transistors and 3 diodes.
Main components on the MINI4
MINI4 bill of materials (BOM)
151 components, 32 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | LM5113 | WSON10_ | U1, U2, U3 |
| 3 | AD8418 | MSOP | U4, U5, U6 |
| 1 | STM32F40X_LQFP64 | lqfp64_pad_mod | U7 |
| 1 | LMR16006 | SOT-23-6 | U8 |
| 2 | MCP1700 | SOT-23 | U9, U10 |
| 6 | Q_NMOS_GSD | DFN5 | Q1, Q2, Q3, Q4, Q5, Q6 |
| 1 | CRYSTAL_SMD | 5x3.2KRISTALL | X1 |
| 6 | CONN_1 | prekov | P1, P2, P3, P4, P5, P6 |
| 3 | CONN_01X06 | JST_ZH_1.5_6-Pin | P9, P10, P11 |
| 1 | D_Schottky | D_SOD-123 | D1 |
| 2 | LED | R_0603 | D3, D4 |
| 1 | 22uH | WE-MAPI | L1 |
| 3 | 220n | C_0603 | C1, C2, C3 |
| 20 | 10u | R_1206 | C4, C5, C12, C13, C24, C25, C28, C32 +12 |
| 21 | 2u2 | C_0603 | C6, C7, C8, C9, C10, C11, C17, C18 +13 |
| 3 | 4n7 | C_0603 | C14, C15, C16 |
| 1 | 220nF | C_0603 | C20 |
| 1 | 220nF | R_0603 | C23 |
| 2 | 10pF | C_0603 | C30, C31 |
| 38 | C | R_1206 | C33, C34, C35, C36, C37, C38, C40, C41 +30 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 100n | R_0603 | C76 |
| 3 | RSENS | 2512Rv2 | R1, R2, R3 |
| 4 | 25k5 | R_0603 | R4, R12, R14, R16 |
| 4 | 2k2 | R_0603 | R5, R13, R15, R17 |
| 6 | 7R5 | R_0603 | R6, R7, R8, R9, R10, R11 |
| 4 | 100R | R_0603 | R18, R19, R20, R30 |
| 1 | 510R | R_0603 | R21 |
| 1 | 8k | R_0603 | R22 |
| 2 | 22R | R_0603 | R25, R27 |
| 2 | 220R | R_0603 | R28, R29 |
| 3 | 10k | R_0603 | R31, R33, R34 |
| 1 | 10kNTC | R_0603 | R32 |
MINI4 design files
The KiCad project lives in the antonchromjak/MINI4 repository on GitHub; these links point at the commit this page was built from.
- LayoutMINI VESC.kicad_pcb
MINI4: common questions
What microcontroller does the MINI4 use?
The MINI4 is built around the STM32F40X_LQFP64, from the STM32 family.
How big is the MINI4 PCB?
The MINI4 measures 65 × 18 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the MINI4?
151 components, from 32 distinct parts. The full bill of materials is listed on this page.
Where can I download the MINI4 design files?
From the antonchromjak/MINI4 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the MINI4 design in my own project?
The repository has no license, so all rights stay with antonchromjak. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the MINI4 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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