Send MIDI data on startup

[chrisF808]

Hello, I am currently experimenting with the Control Surface library. The library is very clear and everything works wonderfully. I can move the virtual faders in the DAW and in the light control program with my physical controllers (faders) on the Arduino.

I would like the MIDI controller to poll its faders once when the program starts and send the MIDI data to the DAW so that the positions of the faders are identical in hardware and software.

Is there a way to query the physical faders and send the MIDI data corresponding to the analog value once when the Arduino starts?

many greetings, Christian

[MarcosGogo]

I don't understand much, but I think there might be some workaround with this MIDI-Output example, taking out the LOOP information and changing the setup to your fader addressing and some GetValue command for the potentiometer, or pitchbend sender class.

But I'm pretty new to programming and with this library. So I can be completely wrong.

[tttapa]

I've just added a forcedUpdate() method to the potentiometer and absolute encoder classes in d08e422. You can use it as follows:

#include <Control_Surface.h>

USBDebugMIDI_Interface midi;

CCPotentiometer pots[] {
  {A0, 0},
  {A1, 1},
  {A2, 2},
  {A3, 3},
};

void setup() {
  Control_Surface.begin();
  while (!Serial);
  for (auto &pot : pots)
    pot.forcedUpdate();
}

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

[MarcosGogo]

I've just added a forcedUpdate() method to the potentiometer and absolute encoder classes in d08e422

Nice. Will this make it possible to use bank with AbsoluteEncoder without position memory when switching banks?

[tttapa]

Nice. Will this make it possible to use bank with AbsoluteEncoder without position memory when switching banks?

I'm not sure what you mean by that, but I'm afraid the answer is no. This change adds no new functionality, it just makes it easier to (re-)send MIDI messages from your main program. You'll see that the implementation of forcedUpdate() is just a single line: d08e422#diff-d0de2dfc74def088993b89e51a028b2b53afd44e60148518771238c1219b151fR64

[chrisF808]

I've just added a forcedUpdate() method to the potentiometer and absolute encoder classes in d08e422. You can use it as follows:

#include <Control_Surface.h>

USBDebugMIDI_Interface midi;

CCPotentiometer pots[] {
  {A0, 0},
  {A1, 1},
  {A2, 2},
  {A3, 3},
};

void setup() {
  Control_Surface.begin();
  while (!Serial);
  for (auto &pot : pots)
    pot.forcedUpdate();
}

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

This works very well, I delayed the call a bit more, now all virtual sliders jump to the position of the hardware sliders.
Thanks for your answer and your work!