2 layers245.1 × 160 mm
8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
139 parts326
2 layers51.8 × 51.4 mm
Rpi pmod hub
gaudat/gauup28Gaudat's GauUps
- Size
- 51.8 × 51.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 81
- Pads
- 194
- Tracks, vias
- 607, 31
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 10 Mar 2022
- Updated
- 27 Sep 2025
Overview
Rpi pmod hub is an open-source printed circuit board by gaudat, from the gaudat/gauup repository on GitHub. It is a 2-layer board of 51.8 × 51.4 mm with 18 parts on 81 nets, routed with 607 tracks and 31 vias.
It is built around the 74HC245D. Its parts include 4 connectors, 2 capacitors and 2 ICs.
Main components
1README
README.mdGaudat's GauUp
A collection of my rambling (GauUping). Expect unstructured mind-dump with project-logging and blogging mixed in.
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | R_Pack04 | Resistor_SMD:R_Array_Convex_4x0402 | RN1, RN2, RN3, RN4, RN5, RN6, RN7, RN8 |
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 74HC245 | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1, U2 |
| 1 | HUB75 | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical_SMD | J4 |
| 1 | PMOD_L | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Horizontal | J2 |
| 1 | PMOD_U | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Horizontal | J1 |
| 1 | RPI_EXT_SMD | Connector_PinHeader_2.54mm:PinHeader_2x20_P2.54mm_Vertical_SMD | J3 |
| 1 | SET DIR | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP1 |
| 1 | SET EN | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm_NumberLabels | JP2 |
Questions
How big is the Rpi pmod hub PCB?
It measures 51.8 × 51.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Rpi pmod hub use?
18 parts, built around the 74HC245D. 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 Rpi pmod hub KiCad files?
From the gaudat/gauup repository on GitHub, at the commit this page was made from: the board is rpi_pmod_hub/rpi_pmod_hub.kicad_pcb and its schematic rpi_pmod_hub/rpi_pmod_hub.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Rpi pmod hub design in my own project?
Its repository states no licence, so its author keeps all rights: ask gaudat before reusing the design.
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