KI64OPTO : Optoelectronic isolated Input board
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This board is recommended when the common inputs are different from classic 5V input. In the case of existing keyboards connected to real organs chest operated with any voltage up to 50V.

This board is fully isolated from any inputs. That is to say that it can receive any voltage input. 1KOhms Resistors can be  computed for any input voltage.

The board can be connected to the KI7_MIDI_USB boards as a non opto isolated KI64.


Opto Isolated KI64 board
64 INPUTS