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This small sized board was designed for smaller MIDI setups, like single MIDI keyboards with advanced features. Connects directly to one 5-octave keyboard accompanied by 8 analog inputs, and can be expanded by more scanners of any kind. So depending on chosen scanner boards it can create MIDI instrument with up to 320 keys in 5 keyboards plus 72 potentiometers. It can be used as MIDI controller for small sized VTPO (Virtual Pipe Organ) like Hauptwerk, Grand Orgue, MidiTzer and others, where multiple keyboards, stops, pistons and other controls are much appreciated
The board shown above has 6 connectors for ribbon cables. 4 bigger connectors are for keyboard contacts, or any kind of non-powered normally-open switches. The are also 2 smaller ones, with 10 pins, one of them contains 8 analog inputs, and also +5V and GND to use as top and bottom rails of all potentiometers.
The other one holds 7 switch type inputs plus one EDIT pin for entering user config mode. Each of the switch and analog type inputs are individually configurable in terms of MIDI channel and event. They may also serve as transposition or channel controls.
2 small 4-way connectors are for optional for scanners, adding another 256 contacts and 64 analog inputs, as well as LCD modules, or LED controllers.
And of course DIN MIDI input and output.
You may be interested also in the following products (click the image for more info):
RibbonTail 16-wire ribbon cable for contact inputs
WIPLUG breakout board distributing 2 ribbon cables to 32 screw terminals
WIPLUG2 small utility board for soldering individual wires to 16-pin header
BBS-1K 64-input contacts scanner if you need more inputs
download user manual