4 layers50 × 65 mm
FeroFlyF405
Ozonised/FeroFlyF405
FeroFlyF405 an open source STM32F405 based flight controller running INAV
150 parts44CERN-OHL-P-2.0
2 layers37 × 21.3 mm
W4aql usb sniffer
BhrzIsChilly/USB-Predator- Size
- 37 × 21.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 27
- Pads
- 57
- Tracks, vias
- 72, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 6 Mar 2026
- Updated
- 17 Apr 2026
Overview
W4aql usb sniffer is an open-source printed circuit board by BhrzIsChilly, from the BhrzIsChilly/USB-Predator repository on GitHub. It is a 2-layer board of 37 × 21.3 mm with 10 parts on 27 nets, routed with 72 tracks and 0 vias.
It is built around the CRCW080527K4FKEAC, CRCW080556K0FKEAC and CRCW0805150RJNEAC, with the CRCW0805270RFKEAC, RP2040-ZERO and 12402012E212A among its other parts. Its parts include 6 resistors, 2 diodes and 1 connector. It belongs with the RP2040 boards of this library.
Main components
6
CRCW080527K4FKEAC
0805-55℃~+155℃ 125mW 27.4kΩ Thick Film Resistor ±1% ±100ppm/℃ 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface MountCRCW080556K0FKEAC
0805-55℃~+155℃ 125mW 56kΩ Thick Film Resistor ±1% ±100ppm/℃ 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface MountCRCW0805150RJNEAC
0805-55℃~+155℃ 125mW 150Ω Thick Film Resistor ±200ppm/℃ ±5% 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface MountCRCW0805270RFKEAC
0805-55℃~+155℃ 125mW 150V 270Ω Thick Film Resistor ±1% ±100ppm/℃ 0805 Chip Resistor - Surface Mount ROHSVishay IntertechnologyChip Resistor - Surface Mount
RP2040-ZERO
-- Development Boards & Kits ROHSWaveshareDevelopment Boards & Kits12402012E212A
SMD1 5A Female Type-C USB 2.0 SMD USB Connectors ROHSAmphenolUSB Connectors
README
README.mdUSB-Predator
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 27.4 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | 56k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4 |
| 1 | 150 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 1 | 270 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | Green LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | RP2040-Zero | MCU_RaspberryPi_and_Boards:RP2040-Zero | RZ1 |
| 1 | Red LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 1 | USB Host Receptacle | Components:AMPHENOL_12402012E212A | J1 |
Questions
How big is the W4aql usb sniffer PCB?
It measures 37 × 21.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the W4aql usb sniffer use?
10 parts, built around the CRCW080527K4FKEAC, CRCW080556K0FKEAC, CRCW0805150RJNEAC and CRCW0805270RFKEAC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the W4aql usb sniffer KiCad files?
From the BhrzIsChilly/USB-Predator repository on GitHub, at the commit this page was made from: the board is KiCAD/W4AQL-USB-Sniffer/w4aql-usb-sniffer.kicad_pcb and its schematic KiCAD/W4AQL-USB-Sniffer/w4aql-usb-sniffer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the W4aql usb sniffer design in my own project?
Its repository states no licence, so its author keeps all rights: ask BhrzIsChilly before reusing the design.
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