HardLabs

Mixed signal Board Rev D

Akhilesh-design-02·STM32F407-Hardware-Design·Board-Design/Mixed signal Board_Rev_D.kicad_pcb

Mixed signal Board Rev D layout, top view — open source STM32 board by Akhilesh-design-02

About the Mixed signal Board Rev D

Mixed signal Board Rev D is an open source STM32 PCB design by Akhilesh-design-02, published on GitHub. It is a 4-layer board measuring 47.1 × 45.4 mm, with 88 components from 34 distinct parts.

Its main chip is the STM32F103C8Tx, from the STM32 family. Other key parts include the CH340C, MMICT5848-00-012, SHT40-AD1B-R2, SGP40-D-R4 and STM32F407VGTx. By type, the board carries 48 capacitors, 14 resistors, 8 ICs, 6 connectors, 5 diodes and 2 crystals.

It belongs with the sensors and audio designs in this gallery.

From the project

4-layer STM32F407 mixed-signal PCB design featuring I2C/I2S/USB interfaces, SGP40 & SHT40 sensors, power plane splits, and star grounding for noise isolation.

Main components on the Mixed signal Board Rev D

STM32F103C8TxCH340CMMICT5848-00-012SHT40-AD1B-R2SGP40-D-R4STM32F407VGTxLD1117S33TR_SOT223LD1117S18TR_SOT223

Mixed signal Board Rev D bill of materials (BOM)

88 components, 34 distinct parts.

QtyPartRefs
1
STM32F103C8Tx
U1
1
CH340C
U2
1
MMICT5848-00-012
U3
1
SHT40-AD1B-R2
U4
1
SGP40-D-R4
U5
1
STM32F407VGTx
U6
1
LD1117S33TR_SOT223
U7
1
LD1117S18TR_SOT223
U8
1
MMBT3904
Q1
2
8MHZ
X1, X2
2
USB_B_Mini
J1, J3
1
Conn_01x06
J2
2
Conn_01x04
J4, J5
1
Terminal Block 2.5mm
J6
1
CST-931AP
BZ1
2
TACTILE SWITCH
SW1, SW2
1
1N4148W
D1
2
MBRS130LT3G
D2, D5
1
BZT52C3V3-7-F
D3
1
ZMM3.3
D4
Show 14 more
QtyPartRefs
1
1K
FB1
4
32pF
C1, C2, C16, C17
24
0.1uF
C3, C4, C5, C6, C7, C10, C11, C12 +16
2
4.7uF
C8, C27
9
1uF
C9, C13, C14, C29, C30, C37, C40, C43 +1
2
2.2uF
C18, C19
3
1uF
C33, C34, C35
4
10uF
C36, C41, C42, C47
6
10KΩ
R1, R5, R6, R9, R10, R11
2
100Ω
R2, R3
1
1.5kΩ
R4
1
180Ω
R7
1
4.7Ω
R8
3
100KΩ
R12, R13, R14

Mixed signal Board Rev D design files

The KiCad project lives in the Akhilesh-design-02/STM32F407-Hardware-Design repository on GitHub; these links point at the commit this page was built from.

Mixed signal Board Rev D: common questions

What microcontroller does the Mixed signal Board Rev D use?

The Mixed signal Board Rev D is built around the STM32F103C8Tx, from the STM32 family.

How big is the Mixed signal Board Rev D?

The Mixed signal Board Rev D measures 47.1 × 45.4 mm, has 4 copper layers and is 1.585 mm thick.

How many components are on the Mixed signal Board Rev D?

88 components, from 34 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mixed signal Board Rev D design files?

From the Akhilesh-design-02/STM32F407-Hardware-Design repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Mixed signal Board Rev D design in my own project?

The repository has no license, so all rights stay with Akhilesh-design-02. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Mixed signal Board Rev D 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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