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STM32-Training-Board with-LEDs and-MAX30102

lkoehli·STM32-Training-Board-with-LEDs-and-MAX30102

STM32-Training-Board with-LEDs and-MAX30102 layout, top view — open source STM32 board by lkoehli
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About the STM32-Training-Board with-LEDs and-MAX30102

STM32-Training-Board with-LEDs and-MAX30102 is an open source STM32 PCB design by lkoehli, published on GitHub. It is a 2-layer board measuring 64.8 × 85.3 mm, with 72 components from 22 distinct parts.

Its main chip is the STM32F072VBTX, from the STM32 family. Other key parts include the LM317AG, MAX30102 and HT7533. By type, the board carries 22 resistors, 14 diodes, 13 capacitors, 12 connectors, 7 switches and 4 ICs.

It belongs with the dev boards & breakouts and sensors designs in this gallery.

From the project

**Short description:** Custom KiCad STM32F072 development board with onboard MAX30102 heart-rate/SpO₂ sensor, USB-C power, 3.3 V & 1.8 V regulators, SWD header, multiple user buttons, and indicator LEDs, designed as a learning and prototyping platform for embedded firmware experiments.

The board is intended as a learning and prototyping platform for:

- Playing with an STM32F0 (STM32F072VBTx, LQFP-100) - Reading the MAX30102 via I²C - Experimenting with GPIO, buttons, and LEDs - Using SWD and USB (device) on bare metal

- first.kicadpro – KiCad project file - first.kicadsch – Schematic - first.kicadpcb` – PCB layout

Everything is in the KiCad 9 file format.

Main components on the STM32-Training-Board with-LEDs and-MAX30102

STM32F072VBTXLM317AGMAX30102HT7533

STM32-Training-Board with-LEDs and-MAX30102 bill of materials (BOM)

72 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
STM32F072VBTX
STM32F072VBTx
U1
1
LM317AG
UTC(Unisonic Tech)
U2
1
MAX30102
U3
1
HT7533
Holtek Semicon
U5
10
CONN_01X06_SOCKET
Conn_01x06_Socket
J1, J4, J5, J6, J7, J8, J9, J10 +2
1
C2927039
Connector, USB-TYPE-C-16P
J2
1
CONN_01X04_PIN
Conn_01x04_Pin
J3
7
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW8
5
C2286
Red
Hubei KENTO Elec
D1, D2, D3, D4, D5
9
C2297
Green
Hubei KENTO Elec
D6, D7, D8, D9, D10, D11, D12, D13 +1
2
10UF
10uF
Samsung Electro-Mechanics
C1, C2
2
1UF
1uF
Samsung Electro-Mechanics
C3, C9
6
100NF
100nF
Samsung Electro-Mechanics
C4, C6, C11, C12, C13, C14
2
4.7NF
4.7nF
FH(Guangdong Fenghua Advanced Tech)
C10, C15
1
10NF
10nF
Samsung Electro-Mechanics
C16
2
5.1kΩ
UNI-ROYAL(Uniroyal Elec)
R1, R17
5
1.2kΩ
UNI-ROYAL(Uniroyal Elec)
R2, R3, R4, R5, R6
9
510Ω
UNI-ROYAL(Uniroyal Elec)
R7, R8, R9, R10, R11, R12, R13, R18 +1
3
4.7kΩ
UNI-ROYAL(Uniroyal Elec)
R14, R15, R16
1
240Ω
UNI-ROYAL(Uniroyal Elec)
R20
Show 2 more
QtyPartRefs
1
100Ω
UNI-ROYAL(Uniroyal Elec)
R21
1
10kΩ
UNI-ROYAL(Uniroyal Elec)
R22

STM32-Training-Board with-LEDs and-MAX30102 design files

The KiCad project lives in the lkoehli/STM32-Training-Board-with-LEDs-and-MAX30102 repository on GitHub; these links point at the commit this page was built from.

STM32-Training-Board with-LEDs and-MAX30102: common questions

What microcontroller does the STM32-Training-Board with-LEDs and-MAX30102 use?

The STM32-Training-Board with-LEDs and-MAX30102 is built around the STM32F072VBTX, from the STM32 family.

How big is the STM32-Training-Board with-LEDs and-MAX30102?

The STM32-Training-Board with-LEDs and-MAX30102 measures 64.8 × 85.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the STM32-Training-Board with-LEDs and-MAX30102?

72 components, from 22 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the STM32-Training-Board with-LEDs and-MAX30102 design files?

From the lkoehli/STM32-Training-Board-with-LEDs-and-MAX30102 repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the STM32-Training-Board with-LEDs and-MAX30102 design in my own project?

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

Can I test firmware for the STM32-Training-Board with-LEDs and-MAX30102 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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