The NW-MIDI Matrix Encoder connects up to four matrix keyboards and four potentiometers to a VPO computer. The configuration is normally 11×6 for Allen keyboards but can be changed to 8×8 if requested. Four 20-pin ribbon cables are provided. One end plugs into the encoder and the other is soldered to a keyboard or pedalboard (see User Manual).
This encoder uses the included Teensy 3.6 for 3.3v operation. When the Teensy 3.5 becomes available it will provide 5v operation.