HardLabs

Hermes-Lite Small IO Expansion

softerhardware·Hermes-Lite2·hardware/companions/smallio/smallio.kicad_pcb

Hermes-Lite Small IO Expansion PCB layout, top view — open source board by softerhardware

About the Hermes-Lite Small IO Expansion PCB

Hermes-Lite Small IO Expansion is an open source PCB design by softerhardware, published on GitHub. It is a 2-layer board measuring 18.4 × 12.5 mm, with 6 components from 5 distinct parts.

Other key parts include the MCP23008-E_SS. By type, the board carries 2 connectors, 1 IC and 1 capacitor.

It belongs with the rf & radio designs in this gallery.

From the project

A second generation low-cost amateur HF software defined radio transceiver.

The BOM below lists possible options for IO jumper board. The builder should choose what components they need to buy and install.

Main components on the Hermes-Lite Small IO Expansion

MCP23008-E_SS

Hermes-Lite Small IO Expansion bill of materials (BOM)

6 components, 5 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP23008-E_SS
U1
2
0
J1, J2
1
IO10
DB1
1
RFD4d
DB17
1
0.1uF
C1

Hermes-Lite Small IO Expansion design files

The KiCad project lives in the softerhardware/Hermes-Lite2 repository on GitHub; these links point at the commit this page was built from.

Hermes-Lite Small IO Expansion: common questions

How big is the Hermes-Lite Small IO Expansion PCB?

The Hermes-Lite Small IO Expansion measures 18.4 × 12.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Hermes-Lite Small IO Expansion?

6 components, from 5 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-Lite Small IO Expansion design files?

From the softerhardware/Hermes-Lite2 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Hermes-Lite Small IO Expansion design in my own project?

The repository has no license, so all rights stay with softerhardware. Use it as a reference, and ask the author before reusing the design.

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