button matrix.ino about control-surface HOT 6 CLOSED

You seem to be compiling an old example that's not compatible with the new version of the library.

See the documentation of NoteButtonMatrix here: https://tttapa.github.io/Control-Surface/Doc/Doxygen/d5/df9/group__MIDIOutputElementConstructors.html#ga23e45eeee7965faa832397bc1a842446

For example:

#include <Control_Surface.h>

USBMIDI_Interface midi;

// The note numbers corresponding to the buttons in the matrix
const AddressMatrix<4, 3> addresses = {{
  {  1,  2,  3 },
  {  4,  5,  6 },
  {  7,  8,  9 },
  { 10, 11, 12 }
}};

NoteButtonMatrix<4, 3> buttonmatrix = {
  {2, 3, 4, 5}, 
  {6, 7, 8}, 
  addresses, 
  CHANNEL_1,
};

void setup() {
  Control_Surface.begin();
}

void loop() {
  Control_Surface.loop();
}

from control-surface.

from control-surface.

from control-surface.

from control-surface.

What do you mean by "velocity buttons"?

You don't have to use the NoteButtonMatrix class. You can use the ButtonMatrix class that just reads the buttons, without any MIDI stuff (it is the base class that is used by the MIDI Button Matrix classes).

https://tttapa.github.io/Control-Surface/Doc/Doxygen/d8/d6c/classButtonMatrix.html

If that doesn't fit your needs, you can just write your own classes, you can easily add MIDI Elements to the Control Surface library, and you can use the utilities it provides, like the MIDI functions and the hardware elements.

from control-surface.

Is there a max polyphony/simultaneous presses?

No, there's no limit. (Polyphony limits are usually because of the sampler that turns MIDI into sound, it can only play and mix a limited number of samples at the same time.)

However, as with all scanning button matrices, you can only press multiple keys at once if every key has a diode installed.

from control-surface.