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STM32-Bluetooth

marwantm·STM32-Bluetooth·Source_Files/STM32 Bluetooth.kicad_pcb

STM32-Bluetooth PCB layout, top view — open source STM32 board by marwantm
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About the STM32-Bluetooth PCB

STM32-Bluetooth is an open source STM32 PCB design by marwantm, published on GitHub. It is a 4-layer board measuring 54.2 × 28.1 mm, with 40 components from 22 distinct parts.

Its main chip is the STM32WB55CEU, from the STM32 family. Other key parts include the MIC5365-3.3YD5 and USBLC6-2SC6. By type, the board carries 19 capacitors, 7 resistors, 3 ICs, 3 connectors, 3 inductors and 2 crystals.

It belongs with the iot & wireless, dev boards & breakouts and rf & radio designs in this gallery.

From the project

STM32WB55 Bluetooth development board — KiCad PCB design project

A 4-layer STM32WB55-based Bluetooth Low Energy development board, designed in KiCad by following Phil's Lab's professional PCB design tutorial — built to strengthen my understanding of the full schematic-to-manufacturing workflow, not just replicate the steps.

This board is built around the STM32WB55CEU, a dual-core MCU with an integrated BLE radio. It includes USB-C power/data, a UART header, an SWD programming interface, an RF front-end with a u.FL antenna connector, and a boot/reset button — a complete minimal BLE development platform.

STM32-Bluetooth, from the project README
From the project README

Main components on the STM32-Bluetooth

MIC5365-3.3YD5USBLC6-2SC6STM32WB55CEU

STM32-Bluetooth bill of materials (BOM)

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

QtyPartRefs
1
MIC5365-3.3YD5
U1
1
USBLC6-2SC6
U2
1
STM32WB55CEU
U3
1
32.768KHZ
32.768kHz
X1
1
32MHZ
32MHz
X2
1
~
J2
1
CONN_01X04_PIN
Conn_01x04_Pin
J3
1
Conn_Coaxial
J4
1
~
FLT1
1
SW_Push
SW1
1
LED
D1
1
10NH
10nH
L1
1
10UH
10uH
L2
1
2.7NH
2.7nH
L3
3
4.7UF
4.7uF
C1, C9, C17
2
4.7NF
4.7nF
C2, C6
10
100NF
100nF
C3, C4, C5, C7, C8, C10, C11, C12 +2
2
10PF
10pF
C13, C16
1
0.8PF
0.8pF
C18
1
0.3PF
0.3pF
C19
Show 2 more
QtyPartRefs
3
5.1K
5.1k
R1, R2, R6
4
220
R3, R4, R5, R7

STM32-Bluetooth design files

The KiCad project lives in the marwantm/STM32-Bluetooth repository on GitHub; these links point at the commit this page was built from.

STM32-Bluetooth: common questions

What microcontroller does the STM32-Bluetooth use?

The STM32-Bluetooth is built around the STM32WB55CEU, from the STM32 family.

How big is the STM32-Bluetooth PCB?

The STM32-Bluetooth measures 54.2 × 28.1 mm, has 4 copper layers and is 1.58 mm thick.

How many components are on the STM32-Bluetooth?

40 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-Bluetooth design files?

From the marwantm/STM32-Bluetooth 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-Bluetooth design in my own project?

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

Can I test firmware for the STM32-Bluetooth 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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