
Type e
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards

my fifth project for fallout!
Usbhub is an open-source printed circuit board by robertshepherdcpp, from the robertshepherdcpp/usbhub repository on GitHub. It is a 2-layer board of 70 × 53.5 mm with 16 parts on 21 nets, routed with 365 tracks and 47 vias.
Its parts include 6 capacitors, 4 resistors, 2 connectors and 1 IC. It belongs with the interfaces and adapters boards of this library.
my fifth project for fallout!
what is it?
how to use it?
how it works
how i made the project
my inspiration for the project/the why
screenshots: the schematic:
the pcb layout:
3d model:
the cad:
zine:
the BOM
total cost: $17.02 (not including shipping from digitkey and lcsc)
| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | ~ | EasyEDA_Lib:USB-A-TH_10.0QHHTZB6.3 | USB1, USB2, USB3 |
| 2 | 100nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C4, C6 |
| 2 | 1uF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C3, C5 |
| 2 | 1uf | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0201_0603Metric | R3, R4 |
| 2 | 5.1kR | Resistor_SMD:R_0201_0603Metric | R1, R2 |
| 1 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Receptacle_GCT_USB4135-GF-A_6P_TopMnt_Horizontal | J1 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J3 |
| 1 | ~ | EasyEDA_Lib:SSOP-16_L4.6-W2.6-P0.53-LS4.0-BL | U1 |

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It measures 70 × 53.5 mm and has 2 copper layers, 1.6 mm thick.
16 parts. 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.
From the robertshepherdcpp/usbhub repository on GitHub, at the commit this page was made from: the board is PCB/usbhub.kicad_pcb and its schematic PCB/usbhub.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask robertshepherdcpp before reusing the design.