For sale is a new MIDI pedal scanner manufactured by Ahlborn/Germany.
This unit generates MIDI note on/off events on fixed MIDI channel 4.
You can connect the organ pedal (having a scanning matrix of 8x8)
to this unit via a Sub-D(-15 pole) connector. I have the schematics
of the pedal interface.
The unit is boxed (20 x 11 x 3.8 cm) and has a separate 9V power adapter.
I can send an image if desired.