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Quacken

Nuclear-Squid·Quacken·flex/quacken.kicad_pcb

Quacken PCB layout, top view — open source RP2040/RP2350 board by Nuclear-Squid
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About the Quacken PCB

Quacken is an open source RP2040/RP2350 PCB design by Nuclear-Squid, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 262 × 113.9 mm, with 44 components from 20 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the W25Q16JVUX, PCAL6524HEAZ, XC6206PXXXMR and SRV05-4. By type, the board carries 19 capacitors, 13 resistors, 6 ICs, 4 connectors and 1 crystal.

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

From the project

Libre, ergonomic, polymorphic: a single PCB for many possible layouts.

Libre, ergonomic, polymorphic: a single PCB for many possible layouts.

3×6, 3×5, hummingbird, and everything in between.

- [x] Quacken Zero: unibody - [x] first batch with a Pro Micro slot, to experiment geometry and design choices - [ ] next batches with an onboard nRF52840 (Bluetooth LE) and the updated geometry

- [x] Quacken Flex: unibody by default, splittable by choice - [x] onboard RP2040 (left) and I/O expander (right) - [x] splittable in two (I²C communication over a TRRS cable) - [x] splittable outer columns - [ ] hotswap sockets - [ ] optional Circle Trackpad - [x] optional…

Quacken, from the project README
From the project README

Main components on the Quacken

W25Q16JVUXRP2040PCAL6524HEAZXC6206PXXXMRSRV05-4

Quacken bill of materials (BOM)

44 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
W25Q16JVUX
U1
1
RP2040
U2
1
PCAL6524HEAZ
U3
1
XC6206PXXXMR
XC6206PxxxMR
U4
2
SRV05-4
U5, U6
1
C91749
12MHz 10pF
Y1
1
C2911838
CIRQUE_Left
J1
1
C2911838
CIRQUE_Right
J2
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J3
1
C160404
Qwiic
J4
1
TS-1088R-02026
SMDSW1
2
15P
15p
C1, C2
12
100N
100n
C3, C4, C7, C9, C10, C12, C13, C14 +4
5
1u
C5, C6, C8, C15, C17
2
1k
R1, R5
4
2.2K
2.2k
R2, R7, R8, R11
2
27
R3, R4
1
10K
10k
R6
2
4.7K
4.7k
R9, R10
2
5.1K
5.1k
R12, R13

Quacken design files

The KiCad project lives in the Nuclear-Squid/Quacken repository on GitHub; these links point at the commit this page was built from.

Quacken: common questions

What microcontroller does the Quacken use?

The Quacken is built around the RP2040, from the RP2040/RP2350 family.

How big is the Quacken PCB?

The Quacken measures 262 × 113.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Quacken?

44 components, from 20 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 Quacken design files?

From the Nuclear-Squid/Quacken 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 Quacken design in my own project?

Yes, under the terms of its GPL-3.0 license, which Nuclear-Squid chose for the repository.

Can I test firmware for the Quacken without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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