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USB duck v2

Freimor·HRDW-HIDKey·KiCad/HID_Key_v2/USB_duck_v2.kicad_pcb

USB duck v2 PCB layout, top view — open source RP2040/RP2350 board by Freimor

About the USB duck v2 PCB

USB duck v2 is an open source RP2040/RP2350 PCB design by Freimor, published on GitHub under the MIT license. It is a 4-layer board measuring 23 × 37.7 mm, with 66 components from 26 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the ECMF02-2AMX6, W25Q128JVPIQ, SN74LVC1G17 and AMS1117-3.3. By type, the board carries 23 resistors, 22 capacitors, 7 ICs, 5 switches, 4 diodes and 3 connectors.

From the project

HID device for easy loadout new MAC with setup script.

USB duck v2, from the project README
From the project README

Main components on the USB duck v2

ECMF02-2AMX6RP2040W25Q128JVPIQSN74LVC1G17AMS1117-3.3

USB duck v2 bill of materials (BOM)

66 components, 26 distinct parts.

QtyPartRefs
2
ECMF02-2AMX6
IC1, IC2
1
RP2040
U1
1
W25Q128JVPIQ
U2
2
SN74LVC1G17
U3, U4
1
AMS1117-3.3
U5
1
Crystal_GND24_Small
Y1
1
USB_C_Receptacle_USB2.0
J1
1
USB_C_Receptacle_USB2.0
J2
1
DEBUG
J3
1
BOOTSEL
BOOTSEL1
1
SW_Push
SW1
4
SW_SPST
SW2, SW3, SW4, SW5
2
D_TVS
D1, D2
2
LED_Dual_AKAK
D3, D4
14
100nF
C1, C2, C3, C4, C5, C6, C7, C8 +6
5
10uF
C9, C13, C16, C17, C18
1
1uF
C10
2
30pF
C14, C15
1
10k DNP
R1
4
5.1k
R2, R3, R9, R10
Show 6 more
QtyPartRefs
1
1k
R4
2
1M
R5, R11
2
27.4
R6, R7
1
1
R8
8
10k
R12, R13, R14, R15, R16, R17, R18, R19
4
470
R20, R21, R22, R23

USB duck v2 design files

The KiCad project lives in the Freimor/HRDW-HIDKey repository on GitHub; these links point at the commit this page was built from.

USB duck v2: common questions

What microcontroller does the USB duck v2 use?

The USB duck v2 is built around the RP2040, from the RP2040/RP2350 family.

How big is the USB duck v2 PCB?

The USB duck v2 measures 23 × 37.7 mm, has 4 copper layers and is 0.8 mm thick.

How many components are on the USB duck v2?

66 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the USB duck v2 design files?

From the Freimor/HRDW-HIDKey repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the USB duck v2 design in my own project?

Yes, under the terms of its MIT license, which Freimor chose for the repository.

Can I test firmware for the USB duck v2 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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