HardLabs

CYW43439

locked·picoclock·pcb/CYW43439/4L/CYW43439.kicad_pcb

CYW43439 PCB layout, top view — open source board by locked
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About the CYW43439 PCB

CYW43439 is an open source PCB design by locked, published on GitHub. It is a 4-layer board measuring 29.9 × 30.2 mm, with 35 components from 22 distinct parts.

Other key parts include the CYW43439KUBGT. By type, the board carries 20 capacitors, 5 resistors, 4 connectors, 4 inductors, 1 IC and 1 crystal.

It belongs with the iot & wireless designs in this gallery.

From the project

This repo is an attempt at building a Pico based alarm clock. It was created for my kids and features:

This repo is an attempt at building a Pico based alarm clock. It was created for my kids and features:

- date/time (obviously) - alarm (plays wav file on sdcard) - weather (current and forecast) - epaper screen - 3d printable case

The configuration is done remotely, and the clock synchronize from time to time (it can be forced too). The time is also fetched from a remote server.

CYW43439, from the project README
From the project README

Main components on the CYW43439

CYW43439KUBGT

CYW43439 bill of materials (BOM)

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

QtyPartRefs
1
CYW43439KUBGT
U1
1
Crystal
Y1
1
GPIOs
J1
1
SPI
J2
1
Power
J3
1
RP-SMA Female
J4
2
600@100MHz
FB1, FB2
1
4.7N
4.7n
L1
1
2.2UH
2.2uH
L2
2
18P
18p
C1, C2
2
10P
10p
C3, C4
3
4.7U
4.7u
C5, C15, C16
3
100N
100n
C6, C8, C11
4
1u
C7, C9, C10, C12
2
2.2U
2.2u
C13, C14
1
0.3P
0.3p
C17
1
0.36P
0.36p
C18
2
0.2P
0.2p
C19, C20
1
220
R1
2
10K
R3, R6
Show 2 more
QtyPartRefs
1
470
R4
1
22
R5

CYW43439 design files

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

CYW43439: common questions

How big is the CYW43439 PCB?

The CYW43439 measures 29.9 × 30.2 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the CYW43439?

35 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 CYW43439 design files?

From the locked/picoclock 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 CYW43439 design in my own project?

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

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