Production of the Open Interface has been discontinued, but you can build your own, based on the available source code.

Open Interface III

is open hardware for any Arduino code for running your own hack - also standart interface between transceiver and computer with keyer for Arduino based on K3NG code and many others.

Main functions:


Block diagram III

Circuit III

Block diagram rev 2.6

Circuit rev 2.6

Short menu intro

Download

Revision 3
v3.141 sch brd1   2629 pcb [20MB] kicad570 .dxf764 block
v3.14 sch brd pcb [17MB] kicad389 dxf.zip382 block
v3.1 sch brd pcb [17MB] kicad372 dxf.zip399 pic1   2   3
v3.0 sch brd pcb [16MB] kicad351 dxf.zip363 pic   panel
Arduino firmware
Code GitHub.com
3D print component
LCD mount l.stl827 r.stl779 .scad822 3D preview
Pot mount .stl663 .scad748 3D preview
Revision 2
v2.6 sch brd kicad410
Arduino firmware
by K3NG source doc pins.h836
Case
v2.6 full.DXF395 DXF4cutter369 wiki
Design front-panel.svg sticker.svg
USB isolator view .scad693 .stl706 3D preview
Open-Hardware
We believe open source is a better way of doing things.
View and download the Shield Schematic and PCB Kicad/Eagle CAD files,
LibreCAD .DXF, or Inkscape .SVG files.
The hardware designs are released under the
Creative Commons Attribution-ShareAlike 4.0 International License