AW: [sdiy] Matrix keyboard idea

[Ullrich Peter]

>On Scott Rider's page:
>http://www.mcs.com/~syzygy/webdoc/mpx61.html
>
>he describes his design (from 1985) for providing MIDI in for any MATRIX 
>keyboard. Has anyone worked on this idea since then?

I made a MIDI-interface like this one but with special matrix circuits from Mitel instead
of the many analog switches. I use MT8816 analog matrix switches.
I use a 89S8252 microcontroller and 4 of these matrix chips playced on a Euro-card.
The midi interface is a little pcb that can be mounted on the backpanel of the keyboard.

I installed it in my Korg Poly61 3 months ago and it works fine!

Ciao
Peter

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