Hermes
About the Hermes PCB
Hermes is an open source PCB design by Shadow220108, published on GitHub. It is a 4-layer board measuring 70 × 70 mm, with 16 components from 16 distinct parts.
By type, the board carries 4 LEDs and 1 resistor.
From the project
This is my first iteration of a USB Hub using the FE1.1s IC. I plan to make future versions with more ports and different ICs, It was built to solve the scarcity of ports on my miserable laptop
This is my first iteration of a USB Hub using the FE1.1s IC. I plan to make future versions with more ports and different ICs, It was built to solve the scarcity of ports on my miserable laptop
All the components will be hand soldered by me, and the case will be 3D Printed! The bottom and top cases will be attached together with 4mm magnets!
The PCB was made in KiCAD (an open-source software), which uses a 4-layer board with a (5V GND 5V GND) stackup to provide a clean GND plane for data signals. It can support up to 480MHz.
Hermes bill of materials (BOM)
16 components, 16 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 2.7K | R_0603_1608Metric | 2.7k |
| 1 | 2A | Fuse_1206_3216Metric | 2A |
| 1 | 5.1k | R_0805_2012Metric | 5.1k |
| 1 | 10k | R_0805_2012Metric | 10k |
| 1 | 10u | C_0603_1608Metric | 10u |
| 1 | 12Mhz | Crystal_SMD_5032-4Pin_5.0x3.2mm | 12Mhz |
| 1 | 22pF | C_0805_2012Metric | 22pF |
| 1 | 56k | R_0805_2012Metric | 56k |
| 1 | 330R | R_0805_2012Metric | 330R |
| 1 | FE1.1s | SSOP-28_3.9x9.9mm_P0.635mm | FE1.1s |
| 1 | SRV05-4 | SOT-23-6-routable | SRVO5 |
| 1 | PORT1 | LED_D3.0mm | PORT1 |
| 1 | PORT2 | LED_D3.0mm | PORT2 |
| 1 | PORT3 | LED_D3.0mm | PORT3 |
| 1 | PORT4 | LED_D3.0mm | PORT4 |
| 1 | 330R | R_0805_2012Metric | R1 |
Hermes design files
The KiCad project lives in the Shadow220108/Hermes repository on GitHub; these links point at the commit this page was built from.
- LayoutPCB/Hermes.kicad_pcb
- SchematicPCB/Hermes.kicad_sch
- BOMPCB/bom (2).csv
Hermes: common questions
How big is the Hermes PCB?
The Hermes measures 70 × 70 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Hermes?
16 components, from 16 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 Hermes design files?
From the Shadow220108/Hermes repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Hermes design in my own project?
The repository has no license, so all rights stay with Shadow220108. Use it as a reference, and ask the author before reusing the design.