HardLabs

MINIREX G473

mathieupommery·MINIREX_G473·HARDWARE/V2/MINIREX_G4/MINIREX_G4.kicad_pcb

MINIREX G473 PCB layout, top view — open source STM32 board by mathieupommery
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About the MINIREX G473 PCB

MINIREX G473 is an open source STM32 PCB design by mathieupommery, published on GitHub. It is a 6-layer board measuring 29 × 33 mm, with 104 components from 36 distinct parts.

Its main chip is the STM32G473CEU6, from the STM32 family. Other key parts include the ICM-42688P, LMR51625YFDDCR, ZD25WQ32CEIGR and LDL212PV33R. By type, the board carries 26 capacitors, 23 resistors, 6 ICs, 5 LEDs, 4 modules and 3 connectors.

It belongs with the sensors designs in this gallery.

From the project

The following table demonstrates the estimated component costs based on Mouser volume pricing. The unit price of each component dynamically adapts to the total quantity required for the entire production batch (1, 100, or 1000 boards).

The following table demonstrates the estimated component costs based on Mouser volume pricing. The unit price of each component dynamically adapts to the total quantity required for the entire production batch (1, 100, or 1000 boards).

Prices are estimates in USD and do not include PCB manufacturing or assembly costs.

MINIREX G473, from the project README
From the project README

Main components on the MINIREX G473

ICM-42688PLMR51625YFDDCRZD25WQ32CEIGRLDL212PV33RSTM32G473CEU6

MINIREX G473 bill of materials (BOM)

104 components, 36 distinct parts.

QtyPartRefs
1
ICM-42688P
IC1
1
LMR51625YFDDCR
IC2
1
ZD25WQ32CEIGR
IC3
2
LDL212PV33R
IC4, IC5
1
STM32G473CEU6
STM32G473CEUx
U2
4
TestPoint_Small
M1, M2, M3, M4
1
TPM2025NP3
PMZB150UNEYL
Q2
1
CSTNE8M00GH5C000R0
Y2
1
USB4105-GF-A
J1
1
SM08B-SRSS-TB
J2
1
SM06B-SRSS-TB
J3
11
TestPoint_Small
5v1, ADC_CURR1, Rx3, Rx4, Tx3, VBAT+1, gnd1, gnd3 +3
15
TestPoint
+4.5V2, +5V1, +5V2, BUZ-1, GND2, GND4, PIO1, RX2 +7
1
TestPoint
GND9
1
TS2306A-240GF-MSM-9_C388290
S1
2
TestPoint
SWCLK1, SWDIO1
1
TestPoint
LED1
1
XL-1005UBC
150040BS73240
LEDBLUE1
1
SZYY0402G
150040GS73240
LEDGREEN1
2
TZ-P2-0402RTIA1-0.45T
150040RS73240
LEDRED3, LEDRED4
Show 16 more
QtyPartRefs
1
TPSP3222-02ETG
D1
2
BAT60JFILM
D10, D11
1
MPZ2012S101ATD25
FB1
1
ZEPIM303020D-4R7M
L1
3
CC0402KRX5R7BB105
1u
C1, C3, C14
3
CC0402MRX5R7BB475
4.7u
C2, C6, C23
2
GRM21BD72A225KE01L
2.2u
C4, C13
1
GRM155R62A104KE14D
0.1u
C5
14
CC0201KRX5R8BB104
100n
C7, C9, C10, C11, C12, C16, C18, C19 +6
2
GRM21BR61A476ME15K
47u
C8, C17
1
CC0402KRX5R7BB225
2.2u
C21
2
RC0201FR-075K1L
5.1k
R1, R10
2
RC0201FR-07100KL
100k
R2, R41
5
RC0201FR-0719K6L
19.1k
R3, R7, R9, R11, R15
6
RC0201FR-071KL
1k
R5, R6, R8, R14, R21, R22
8
RC0201FR-0747RL
47R
R13, R17, R44, R45, R46, R47, R56, R61

MINIREX G473 design files

The KiCad project lives in the mathieupommery/MINIREX_G473 repository on GitHub; these links point at the commit this page was built from.

MINIREX G473: common questions

What microcontroller does the MINIREX G473 use?

The MINIREX G473 is built around the STM32G473CEU6, from the STM32 family.

How big is the MINIREX G473 PCB?

The MINIREX G473 measures 29 × 33 mm, has 6 copper layers and is 1.6 mm thick.

How many components are on the MINIREX G473?

104 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the MINIREX G473 design files?

From the mathieupommery/MINIREX_G473 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MINIREX G473 design in my own project?

The repository has no license, so all rights stay with mathieupommery. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the MINIREX G473 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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