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BB-STM32WL Dev Board

tkraf·BB-STM32WL_Dev_Board

BB-STM32WL Dev Board layout, top view — open source board by tkraf

About the BB-STM32WL Dev Board

BB-STM32WL Dev Board is an open source PCB design by tkraf, published on GitHub. It is a 2-layer board measuring 48 × 51 mm, with 42 components from 30 distinct parts.

Other key parts include the MCP73831T-2ACI/MC, TLV62569PDDCR and MCP2221AxST. By type, the board carries 13 resistors, 8 connectors, 8 diodes, 6 capacitors, 3 ICs and 3 switches.

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

From the project

A dev board for the BB-STM32WL

A development board for the BB-STM32WL that supports LiPo batteries, solar charging, USB programming, and a virtual COM port.

- LiPo Battery Support: Easily connect and use LiPo batteries for power. - Solar Charging: Integrated solar charging capabilities to keep your board powered sustainably. - USB Programming: Convenient USB interface for programming the device. - Virtual COM Port: Access a virtual COM port for serial communication.

Main components on the BB-STM32WL Dev Board

MCP73831T-2ACI/MCTLV62569PDDCRMCP2221AxST

BB-STM32WL Dev Board bill of materials (BOM)

42 components, 30 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP73831T-2ACI/MC
MCP73831-2-MC
U1
1
TLV62569PDDCR
U2
1
MCP2221AxST
U3
1
216990-0003
2169900003
J1
1
61300611821
SPI
J2
1
61300611821
USART
J3
1
61300411821
I2C
J5
1
0532610271
3V-16V
J6
1
0532610271
BATTERY
J7
2
Conn_01x12
J8, J9
1
BOOT
SW1
1
RESET
SW2
1
SLW-864574-5A-RA-N-D
ON_OFF
SW4
1
B1811URO-20D000113U1930
TX
D1
1
B1811URO-20D000113U1930
RX
D2
1
B1811URO-20D000113U1930
LED_Small
D3
3
SBA140AS_R1_00001
~
D4, D7, D8
1
B1811URO-20D000113U1930
POWER
D5
1
B1811URO-20D000113U1930
FULL
D6
1
XFL4020-102MEB
1uH
L1
Show 10 more
QtyPartRefs
4
CL21A106KOQNNNE
10uF
C1, C2, C12, C13
1
CL05A475MP5NRNC
4.7uF
C7
1
CL21A226MAYNNNE
22uF
C8
2
RC0402FR-075K1L
5.1k
R1, R2
5
ERJ-2RKF6650X
665
R9, R10, R15, R16, R17
1
CRCW0402453KFKED
453K
R11
1
CRCW0402100KFKED
100K
R12
2
RC0402JR-071KL
1K
R18, R19
1
RNCF0402DKE50K0
50K
R20
1
RC0402FR-0797K6L
97K
R21

BB-STM32WL Dev Board design files

The KiCad project lives in the tkraf/BB-STM32WL_Dev_Board repository on GitHub; these links point at the commit this page was built from.

BB-STM32WL Dev Board: common questions

How big is the BB-STM32WL Dev Board?

The BB-STM32WL Dev Board measures 48 × 51 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BB-STM32WL Dev Board?

42 components, from 30 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 BB-STM32WL Dev Board design files?

From the tkraf/BB-STM32WL_Dev_Board 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 BB-STM32WL Dev Board design in my own project?

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

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