Cannot change patches using MIDI controls

[albedozero]

I also have a question, how might I get to know which of my buttons correspond to which number ?
So as to be able to change Banks and sounds ? The default don't work.

Originally posted by @Pauldb8 in #16 (comment)

[albedozero]

The simplest way is to configure a couple of the pads/buttons on your controller to send momentary CC messages 21 and 22 on MIDI channel 1. Otherwise, you can modify the values of MIDI_CTRL, MIDI_INC, and MIDI_DEC here in the squishbox.py file.

[luucvanderzee]

Hello, sorry if this is a stupid question, I am new to midi and raspberry PI... but I can't get the patch change controls to work.

I have an Arturia Minilab 3 connected to my raspberry PI. Using the normal keys works, but I want to use some of the fingerdrum pads of the controller for the patch selection. I ran aseqdump -p 20:0 on my PI to read what midi channels and notes my pads are- it turns out they are notes 41-43 on channel 9. I then changes the variables in the squishbox.py channel in the following way:

MIDI_CTRL = 9
MIDI_DEC = 41
MIDI_INC = 42
MIDI_PATCH = 43

and rebooted the PI, but it doesn't work- using the pads doesn't change the patch. What am I missing / misunderstanding here?

EDIT:

I've now added the following lines to the the top of the listener method, and it works:

 if 'chan' in sig and 'par1' in sig:
  if sig.chan == 10 and sig.par1 == 41:
    self.pno = (self.pno + 1) % len(fp.patches)
  elif sig.chan == 10 and sig.par1 == 42:
    self.pno = (self.pno - 1) % len(fp.patches)

so it seems like the midi channel was actually 10, and aseqdump uses zero indexing. Changing MIDI_CTRL to 10 still doesn't solve the issue unfortunately. But at least I have a workaround

[albedozero]

@luucvanderzee it seems likely that your pads are sending notes instead of control change (CC) messages. You can change this in your MIDI controller, or in the add_midicontrols function change the type arguments to cc.