2 layers65 × 33.4 mm
BL R8812AF1 2x mount
OpenIPC/hardware
A collection of hardware developments by the OpenIPC team
28 parts33MIT
2 layers154.7 × 96 mm
BFUSB HUB
depressobbq/BFUSB-16its a Big effin USB hub, based on "off- the-shelf" parts.
- Size
- 154.7 × 96 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 70
- Nets
- 77
- Pads
- 297
- Tracks, vias
- 512, 17
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 29 Apr 2023
- Updated
- 29 Apr 2023
Overview
BFUSB HUB is an open-source printed circuit board by depressobbq, from the depressobbq/BFUSB-16 repository on GitHub. It is a 2-layer board of 154.7 × 96 mm with 70 parts on 77 nets, routed with 512 tracks and 17 vias.
It is built around the SL2.1A. Its parts include 31 capacitors, 18 connectors, 6 fuses, 5 ICs and 5 crystals.
Main components
1README
README.mdBFUSB-16
its a Big effin USB hub, based on off the shelf parts.
The goal here is to have something with easy to source parts, that asre simultaniously as easy to solder by hand as possible. I went with good ol barrel caps, and single stacked usbs. Also I went with crystals at each of the hub chips, despite them being able to run without one, just due to no trusting it to actually do so. the hope here being that with nice big beefy caps and crystals on each hub chip, this thing ought to be stable even fully populated.
If it works as intended, it should be great for people like me who need a million USB's hooked to their PC for sim racing, but it would also be cool to see if it would work as a 16 USB RAID0 (if my numbers are correct your average flashdrive * 16 is the full usb 2 bandwidth)
Any comments / questions, leave them in the issues, and if you want to help improve the design make a pull request. Im usually not far from a keyboard. This PCB should be good to go with either JLCPCB ( my favorite) or PCBWay.
Parts
70| Qty | Value | Footprint | References |
|---|---|---|---|
| 31 | C | Capacitor_THT:C_Radial_D10.0mm_H12.5mm_P5.00mm | C1, C2, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23 +15 |
| 16 | USB_A | 74AHC125:USB_A_Stewart_SS-52100-001_Horizontal_Bedge | J3, J4, J5, J6, J7, J8, J9, J10, J11, J12, J13, J14, J15, J16, J17, J18 |
| 5 | Crystal | Crystal:Crystal_HC49-U_Vertical | Y1, Y2, Y3, Y4, Y5 |
| 5 | Fuse_Small | Fuse:Fuse_2920_7451Metric_Pad2.10x5.45mm_HandSolder | F2, F3, F4, F5, F6 |
| 5 | SL2.1A | SL2:SO16 | U1, U2, U3, U4, U5 |
| 2 | LED | LED_THT:LED_D3.0mm | D2, D3 |
| 2 | R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P1.90mm_Vertical | R1, R2 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_CUI_PJ-063AH_Horizontal | J2 |
| 1 | D | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | Fuse | Fuse:Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
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Questions
How big is the BFUSB HUB PCB?
It measures 154.7 × 96 mm and has 2 copper layers, 1.6 mm thick.
What parts does the BFUSB HUB use?
70 parts, built around the SL2.1A. 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 BFUSB HUB KiCad files?
From the depressobbq/BFUSB-16 repository on GitHub, at the commit this page was made from: the board is BFUSB_HUB.kicad_pcb and its schematic BFUSB_HUB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the BFUSB HUB design in my own project?
Its repository states no licence, so its author keeps all rights: ask depressobbq before reusing the design.