Hi Hans

The Teensy USB Development Board that I use and Berger coded for me just emulates a keyboard.

First you have to untick the read only attribute in the Montreux cfg properties (Screenshot 1).

Then you change the Steadykey to zero in the Core Input Option of the Montreux ini file (Screenshot 2).

Now you have to try and work out which square corresponds to the Unamed Key in the Root (Screenshot 3).

First on your keyboard, change all the Named keys (New Game etc) to none.

Then input a1 (Kbd A Kbd 1) into any Unnamed Key then return to machine and press the a1 square on your physical board. What happens then is that although you have programmed the Unnamed Key to the a1 square it probably indicates another square on the PC graphical board.

You now go back into the Root and change the wrong programmed Unnamed Key (a1) to the actual PC board square.

Now you have found your first correct square you continue doing this for all the 64 squares.

Final screenshot of my board working with the Montreux program.

I hope this helps you in understanding how it communicates.

Regards
Bryan