4 layers99.9 × 100 mm
Hermeslite
softerhardware/Hermes-Lite2
A second generation low-cost amateur HF software defined radio transceiver.
490 parts384
2 layers18.4 × 12.5 mm
A second generation low-cost amateur HF software defined radio transceiver.
- Size
- 18.4 × 12.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 6
- Nets
- 17
- Pads
- 40
- Tracks, vias
- 83, 9
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 24 Nov 2016
- Updated
- 4 Nov 2026
Overview
Smallio is an open-source printed circuit board by softerhardware, from the softerhardware/Hermes-Lite2 repository on GitHub. It is a 2-layer board of 18.4 × 12.5 mm with 6 parts on 17 nets, routed with 83 tracks and 9 vias.
Its parts include 2 connectors, 1 capacitor and 1 IC. It belongs with the radio and wireless boards of this library.
README
README.mdHermes-Lite 2.x
See the main Hermes-Lite Web Page for the latest links and details.
This is a work in progress to create a low-cost software defined amateur radio HF transceiver based on a broadband modem chip and the Hermes SDR project.
Parts
6| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 0 | HERMESLITE:SMD-0805 | J1, J2 |
| 1 | 0.1uF | HERMESLITE:SMD-0805 | C1 |
| 1 | IO10 | HERMESLITE:edge10_alt | DB1 |
| 1 | MCP23008-E_SS | Package_SO:SSOP-20_5.3x7.2mm_P0.65mm | U1 |
| 1 | RFD4d | HERMESLITE:4x1 | DB17 |
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Questions
How big is the Smallio PCB?
It measures 18.4 × 12.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Smallio use?
6 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.
Where can I download the Smallio KiCad files?
From the softerhardware/Hermes-Lite2 repository on GitHub, at the commit this page was made from: the board is hardware/companions/smallio/smallio.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Smallio design in my own project?
Its repository states no licence, so its author keeps all rights: ask softerhardware before reusing the design.