#include
/*
* MIDI_FilterExp.ino
* David Summers
* 2018.01.03
*
* Reads MIDI IN, passes every message except
* CC mnessages for Expression (CC11) and Volume (CC04).
* Useful for controllers that send such data,
* but you wish for the controlled tone module to ignore it.
* I use this to control a Yamaha Motif-Rack ES from
* a Hammond XK3c; I want my expression pedal to
* effect the organ, but not anything on the Motif.
*/
MIDI_CREATE_DEFAULT_INSTANCE();
static const unsigned ledPinG = 6; // LED pin on Arduino Uno
static const unsigned ledPinR = 7; // LED pin on Arduino Uno
void setup()
{
pinMode(ledPinG, OUTPUT);
pinMode(ledPinR, OUTPUT);
MIDI.begin(MIDI_CHANNEL_OMNI);
digitalWrite(ledPinG, LOW);
digitalWrite(ledPinR, HIGH);
MIDI.turnThruOff();
}
void loop()
{
//digitalWrite(ledPinR, LOW);
if (MIDI.read())
{
switch(MIDI.getType()) // Get the type of the message we caught
{
//Capture Control Change messages
case midi::ControlChange :
//Capture Expression OR Volume CC messages
if (MIDI.getData1() == 11 || MIDI.getData1() == 4)
{
//Don't pass data
digitalWrite(ledPinR, LOW);
}
//All other CC messages
else
{
MIDI.sendControlChange(MIDI.getData1(), MIDI.getData2(), MIDI.getChannel());
}
delay(0);
digitalWrite(ledPinR, HIGH);
break;
default:
//digitalWrite(ledPinR, LOW);
MIDI.send(MIDI.getType(),
MIDI.getData1(),
MIDI.getData2(),
MIDI.getChannel());
delay(0);
//digitalWrite(ledPinR, HIGH);
break;
}
}
}
