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.

Download firmware
Last update: January 01 1970


Main functions:

Block diagram III

Circuit III

Block diagram rev 2.6

Circuit rev 2.6

Short menu intro


Revision 3
v3.141 sch brd1   252 pcb [20MB] kicad48 dxf.zip56 block
v3.14 sch brd pcb [17MB] kicad39 dxf.zip29 block
v3.1 sch brd pcb [17MB] kicad27 dxf.zip32 pic1   2   3
v3.0 sch brd pcb [16MB] kicad32 dxf.zip30 pic   panel
Arduino firmware
experimental code Last update: January 01 1970
3D print component
LCD mount l.stl55 r.stl64 .scad63 3D preview
Pot mount .stl42 .scad57 3D preview
Revision 2
v2.6 sch brd kicad38
Arduino firmware
by K3NG source doc pins.h58
v2.6 full.DXF33 DXF4cutter30 wiki
Design front-panel.svg sticker.svg
USB isolator view .scad53 .stl52 3D preview
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