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STM32 Bluetooth Hardware Design

riyassadiq11·STM32_Bluetooth_Hardware_Design_PCB·STM32 BLUETOOTH HARDWARE DESIGN/STM32 BLUETOOTH HARDWARE DESIGN.kicad_pcb

STM32 Bluetooth Hardware Design PCB layout, top view — open source STM32 board by riyassadiq11

About the STM32 Bluetooth Hardware Design PCB

STM32 Bluetooth Hardware Design is an open source STM32 PCB design by riyassadiq11, published on GitHub under the MIT license. It is a 4-layer board measuring 49 × 24 mm, with 40 components from 21 distinct parts.

Its main chip is the STM32WB55CEU6, 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 rf & radio, iot & wireless and power & battery designs in this gallery.

From the project

4‑layer PCB (49 × 24 mm, 1.6 mm) using STM32WB55CEU6 for Bluetooth. Features USB‑C with ESD protection, RF + U.FL antenna, SWD debug header, and SMPS power. Includes impedance‑controlled routing, custom footprint (DLF162500LT‑5028A1), 3D STEP models, and validated with ERC/DRC checks.

Working: STM32WB55 uses an internal buck converter. VLXSMPS pin drives the inductor, SMPSFB senses feedback, and VFBSMPS stabilizes output.This lowers current draw and heat, especially important for battery‑powered designs.

Working: MCU generates Bluetooth RF signal → passes through matching network → filtered → sent to antenna. Impedance control (50 Ω single‑ended) ensures maximum power transfer and minimal reflection.

Main components on the STM32 Bluetooth Hardware Design

MIC5365-3.3YD5USBLC6-2SC6STM32WB55CEU6

STM32 Bluetooth Hardware Design bill of materials (BOM)

40 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MIC5365-3.3YD5
Microchip Technology
U1
1
USBLC6-2SC6
STMicroelectronics
U2
1
STM32WB55CEU6
STMicroelectronics
U3
1
STDMUB1-32.768K
32kHz768
NDK
X1
1
CS06465-32M
32MHz
NDK
X2
1
USB4105-GF-A
USB_C_Receptacle_USB2.0_16P
GCT
J1
1
53048-0410
Conn_01x04
Molex
J3
1
Conn_Coaxial
Hirose Connector
J4
1
DLF162500LT-5028A1
TDK
FLT1
1
SW_Push
C&K
SW1
1
150040RS73240
LED
Wurth Elektronik
D1
1
LQG15WZ10NJ02D
10n
Murata Electronics
L1
1
LQM21FN100M70L
10u
Murata Electronics
L2
1
LQG15HS2N7S02D
2n7
Murata Electronics
L3
5
0603YD475MAT2A
4u7
KYOCERA AVX
C1, C2, C3, C10, C16
10
04023C104KAT2A
100n
KYOCERA AVX
C4, C5, C6, C7, C8, C9, C11, C12 +2
2
04025A100JAT4A
10p
KYOCERA AVX
C13, C15
1
GRM1555C1HR80BA01D
0p8
Murata Electronics
C17
1
GRM1555C1HR30WA01D
0p3
Murata Electronics
C18
3
RC0603FR-075K1L
5k1
YAGEO
R1, R2, R6
Show 1 more
QtyPartRefs
4
RC0402FR-07221RL
220R
YAGEO
R3, R4, R5, R7

STM32 Bluetooth Hardware Design design files

The KiCad project lives in the riyassadiq11/STM32_Bluetooth_Hardware_Design_PCB repository on GitHub; these links point at the commit this page was built from.

STM32 Bluetooth Hardware Design: common questions

What microcontroller does the STM32 Bluetooth Hardware Design use?

The STM32 Bluetooth Hardware Design is built around the STM32WB55CEU6, from the STM32 family.

How big is the STM32 Bluetooth Hardware Design PCB?

The STM32 Bluetooth Hardware Design measures 49 × 24 mm, has 4 copper layers and is 1.58 mm thick.

How many components are on the STM32 Bluetooth Hardware Design?

40 components, from 21 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 Hardware Design design files?

From the riyassadiq11/STM32_Bluetooth_Hardware_Design_PCB 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 Hardware Design design in my own project?

Yes, under the terms of its MIT license, which riyassadiq11 chose for the repository.

Can I test firmware for the STM32 Bluetooth Hardware Design 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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