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Ww

blakesmith·embedded·ww/hardware/ww/ww.kicad_pcb

Ww PCB layout, top view — open source STM32 board by blakesmith
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About the Ww PCB

Ww is an open source STM32 PCB design by blakesmith, published on GitHub. It is a 2-layer board measuring 31 × 38 mm, with 45 components from 32 distinct parts.

Its main chip is the 160-1547-5, from the STM32 family. Other key parts include the 497-7308-1, 497-1242-6, AS1115-BSST, 497-17017 and 598-1650. By type, the board carries 17 ICs, 14 capacitors, 8 resistors, 2 connectors, 2 switches and 1 battery holder.

From the project

Blake's embedded projects

Main components on the Ww

497-7308-1497-1242-6AS1115-BSST497-17017160-1547-5598-1650609-4613-1MCP73831T-2ACI/OTAPA102

Ww bill of materials (BOM)

45 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
497-7308-1
MCP73812T-420I-OT
U1
1
497-1242-6
M41T62
U2
1
AS1115-BSST
LD1117S50TR_SOT223
U3
1
497-17017
LD1117S33TR_SOT223
U4
1
160-1547-5
STM32F042K6Tx
U5
1
598-1650
APA102
U6
1
609-4613-1
APA102
U7
1
MCP73831T-2ACI/OT
APA102
U8
9
APA102
U9, U10, U11, U12, U13, U14, U15, U16 +1
1
CP-2524SJ
USB_B
J1
1
ED1543
Conn_ARM_JTAG_SWD_10
J2
1
Battery_Cell
BT1
1
401-1999-1
BTN0
SW1
1
PEC11R-4215K-S0024
BTN1
SW2
1
160-1645-1
STATUS_LED
D1
2
478-1395-1
0.1uf
C1, C4
1
478-1395-1
1uf
C2
2
478-1405-1
1uf
C3, C14
1
478-1415-1
0.1uf
C5
4
478-1395-1
10uf
C6, C7, C11, C12
Show 12 more
QtyPartRefs
1
478-5167-1
0.1uf
C8
1
478-1360-1
0.1uf
C9
1
478-1360-1
4.7uf
C10
1
478-1405-1
0.1uf
C13
1
311-10KAR
2k
R1
1
311-24.9CR
510
R2
1
311-40.2CR
1k
R3
1
311-40.2CR
510
R4
1
311-40.2CR
1.3k
R5
1
311-51.1CR
10k
R6
1
311-51.1CR
300
R7
1
311-470AR
10k
R8

Ww design files

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

Ww: common questions

What microcontroller does the Ww use?

The Ww is built around the 160-1547-5, from the STM32 family.

How big is the Ww PCB?

The Ww measures 31 × 38 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ww?

45 components, from 32 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 Ww design files?

From the blakesmith/embedded repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Ww design in my own project?

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

Can I test firmware for the Ww 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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