HardLabs

USBcablecracker

szdiy·USBcablecracker·hardware/USBcablecracker.kicad_pcb

USBcablecracker PCB layout, top view — open source AVR/Arduino board by szdiy
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About the USBcablecracker PCB

USBcablecracker is an open source AVR/Arduino PCB design by szdiy, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 100 × 50 mm, with 56 components from 32 distinct parts.

Its main chip is the ATmega32U4-AU, from the AVR/Arduino family. Other key parts include the LMV358 and AD623. By type, the board carries 22 resistors, 13 capacitors, 10 connectors, 4 diodes, 3 ICs and 1 crystal.

From the project

USBcablecracker ============ USB Cable Cracker is a device that measures the resistance of USB cable. It measures the serial resistance of VCC + GND or D+ or D-. And if you are not satisfy with the resistance, you can crack the cable by yourself. It is a Arduino Leonardo compatib

USBcablecracker ============ USB Cable Cracker is a device that measures the resistance of USB cable. It measures the serial resistance of VCC + GND or D+ or D-. And if you are not satisfy with the resistance, you can crack the cable by yourself. It is a Arduino Leonardo compatible board, with some extend pins.

[schem]:https://github.com/szdiy/USBcablecracker/raw/master/hardware/USBcablecracker.pdf [bom]:https://github.com/szdiy/USBcablecracker/raw/master/hardware/manufature/USBcablecracker_bom.csv

USBcablecracker, from the project README
From the project README

Main components on the USBcablecracker

ATmega32U4-AULMV358AD623

USBcablecracker bill of materials (BOM)

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

QtyPartRefs
1
ATmega32U4-AU
U1
1
LMV358
U2
1
AD623
U3
1
16MHZ
16MHz
Y1
2
USB_A
P1, P10
1
CONN_01X02
P2
1
USB_B-Micro
P3
2
CONN_01X09
P6, P12
1
USB_B-Mini
P7
1
USB_B-Micro-3.0
P8
1
USB_TYPEC-S
P9
1
USB_B
P11
1
ICSP
CONN1
1
LCD16X2
DS1
1
Switch_SPDT_x2
SW1
1
RX
D1
1
TX
D2
1
L
D3
1
ON
D4
2
15PF
15P
C1, C5
Show 12 more
QtyPartRefs
4
1NF
1nF
C2, C3, C4, C13
5
100NF/10V
100nF
C6, C9, C10, C11, C12
1
1UF
1uF
C7
1
22UF/10V
22uF
C8
9
10K
R1, R9, R11, R13, R15, R16, R20, R21 +1
5
1K
R2, R3, R4, R5, R6
2
22R
R7, R8
1
91R
R10
2
100K
R12, R14
1
68
R17
1
33
R18
1
11k
R19

USBcablecracker design files

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

USBcablecracker: common questions

What microcontroller does the USBcablecracker use?

The USBcablecracker is built around the ATmega32U4-AU, from the AVR/Arduino family.

How big is the USBcablecracker PCB?

The USBcablecracker measures 100 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the USBcablecracker?

56 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 USBcablecracker design files?

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

Can I use the USBcablecracker design in my own project?

Yes, under the terms of its CC-BY-SA-4.0 license, which szdiy chose for the repository.

Can I test firmware for the USBcablecracker without the hardware?

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

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