HardLabs

USB Hub

llegoff·USB_Hub

USB Hub PCB layout, top view — open source board by llegoff
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About the USB Hub PCB

USB Hub is an open source PCB design by llegoff, published on GitHub under the CERN-OHL-1.2 license. It is a 2-layer board measuring 65 × 30 mm, with 34 components from 19 distinct parts.

Other key parts include the GL850G. By type, the board carries 16 capacitors, 7 resistors, 2 connectors, 1 IC, 1 crystal and 1 fuse.

It belongs with the usb & debug tools designs in this gallery.

From the project

GL852G or GL850G usb2.0 hub PiZero format

rev1 - R12 (new R3 in rev2) is connected to 5v, it must be connected to gnd

rev2 - Change R3 route - Change the numbering of the components

USB Hub, from the project README
From the project README

Main components on the USB Hub

GL850G

USB Hub bill of materials (BOM)

34 components, 19 distinct parts.

QtyPartRefs
1
GL850G
U1
1
12Mhz
Y1
1
USB
J1
1
USB_OTG
J2
1
Polyfuse_Small
F1
1
SW_RST
SW1
3
USB_A
USB1, USB2, USB3
1
USB
USB4
1
47u
L1
9
100n
C1, C4, C5, C6, C7, C10, C13, C15 +1
2
10u
C2, C11
1
1u
C3
2
33p
C8, C12
2
100u
C9, C14
3
10k
R1, R5, R7
1
100
R2
1
680
R3
1
100k
R4
1
5.1k
R6

USB Hub design files

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

USB Hub: common questions

How big is the USB Hub PCB?

The USB Hub measures 65 × 30 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the USB Hub?

34 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the USB Hub design files?

From the llegoff/USB_Hub repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the USB Hub design in my own project?

Yes, under the terms of its CERN-OHL-1.2 license, which llegoff chose for the repository.

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