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Arduino PS2-to-USB

This project allows you to use Arduino as USB adapter for PS2 keyboards like IBM model M

Installation and usage

To use Arduino as adapter you should first connect PS/2 keyboard cables wires to arduino

V+    to  VCC
GND   to  GND
Data  to  pin2
Clock to  pin3

Then connect arduinos USB to PC with any suitable cable and upload the code as a normal scetch to arduino

  • First release confirmed to be working with Windows7 and Windows10. Most likely works on most operating systems with some degree of accuracy with keymaps

  • Requires arduino with USB host cababilities. Confirmed working on Arduino Pro Micro

  • Currently only supports Finnish keymap with 104 keys or less. If you want to help adding more keymaps feel free to email me

  • Pausebreak key toggles numpad numbers to work as mouse (0 and 5 for mousebuttons)

Todo and upcoming changes

  • Code cleanup and refactoring
  • Add support for capslock etc. lights
  • Add support for more keys
  • Add support for en-us keymap
  • Add easy-to-configure remapping system
  • Convert code from scetch to library form
  • Better mouse emulation support

License and copyleft

Copyleft Markus Hirsimäki under GNU General Public License v3.0

Acknowledgments

Special thanks to Buutti OY's programming club and University of Oulu's course on electronics repurposing