HardLabs

Bt stm32

rahdeensigari·bt-stm32·pcb/bt-stm32.kicad_pcb

Bt stm32 PCB layout, top view — open source STM32 board by rahdeensigari

About the Bt stm32 PCB

Bt stm32 is an open source STM32 PCB design by rahdeensigari, published on GitHub. It is a 4-layer board measuring 39.5 × 24.2 mm, with 42 components from 24 distinct parts.

Its main chip is the C911135, from the STM32 family. Other key parts include the C11337 and C7519. By type, the board carries 20 capacitors, 7 resistors, 4 connectors, 3 ICs, 3 inductors and 2 crystals.

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

From the project

An STM32 devboard with Bluetooth capabilities, made primarily for the sake of practice.

If you want to make this for whatever reason, I would HIGHLY recommend using an SMD stencil instead of JLCPCB's PCBA, the gerbers and the BOM are in the production folder. You can also find the firmware, which is currently just a basic LED blink, in the firmware folder, and the PCB files themselves in the pcb folder.

Some general cost estimates (USD): - PCB: $7.10 - Stencil: $7.22 - LCSC Components: $31.01

Bt stm32, from the project README
From the project README

Main components on the Bt stm32

C11337C7519C911135

Bt stm32 bill of materials (BOM)

42 components, 24 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C11337
TLV70033_SOT23-5
TI
U1
1
C7519
USBLC6-2SC6
ST
U2
1
C911135
STM32WB55CEU6
ST
U3
1
C54930595
32.768kHz
NSX
X1
1
C843260
32MHz
NDK
X2
1
C2894897
USB_C_Receptacle_USB2.0_16P
HCTL
J1
1
HX PM1.27-1x6P ZC
Conn_01x06_Socket
hanxia
J2
1
C42163122
Conn_01x04_Socket
Hong Cheng
J3
1
C598199
Conn_Coaxial
HRS
J4
1
C531364
DLF162500LT-5028A1
TDK
FLT1
1
C49234124
SW_Push
hanxia
SW1
1
C21260817
LED
YONGYUTAI
D1
1
C184029
10n
muRata
L1
1
C963809
10u
HYHONGYEX
L2
1
C77108
2.7n
muRata
L3
3
C1705
4.7u
Samsung Electro-Mechanics
C1, C2, C3
10
C152819
100n
Walsin
C4, C6, C7, C8, C9, C10, C11, C12 +2
1
C106200
100p
YAGEO
C5
2
C368809
4.7u
Samsung Electro-Mechanics
C13, C15
2
C161306
13p
muRata
C16, C17
Show 4 more
QtyPartRefs
1
C88902
0.8p
muRata
C18
1
C76909
0.3p
muRata
C19
3
C105872
5.1k
YAGEO
R1, R2, R8
4
C25091
220R
UNI-ROYAL
R3, R4, R5, R9

Bt stm32 design files

The KiCad project lives in the rahdeensigari/bt-stm32 repository on GitHub; these links point at the commit this page was built from.

Bt stm32: common questions

What microcontroller does the Bt stm32 use?

The Bt stm32 is built around the C911135, from the STM32 family.

How big is the Bt stm32 PCB?

The Bt stm32 measures 39.5 × 24.2 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the Bt stm32?

42 components, from 24 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 Bt stm32 design files?

From the rahdeensigari/bt-stm32 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 Bt stm32 design in my own project?

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

Can I test firmware for the Bt stm32 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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