Pieter P

Also, what's the value of the capacitor on your reset line? It looks way too small. I'm using 0.1 µF. If it's too small, the display won't reset properly. Also...

> Could you just write me a line of code for this line What do you mean?

You can only use the mux pins as inputs, not outputs. The row pins are outputs, the column pins are inputs, see https://tttapa.github.io/Control-Surface-doc/Doxygen/d2/daf/classNoteButtonMatrix.html#a7b57c72549e335d4aad8f364db6ef299. Try moving the mux pins to the...

> Is there any software trick to solve that, some logic inversion? I already resoldered common cathode/anode, so every led lights up after start. Not directly, but I think you...

This is quite odd, I've never had issues on Linux. While I only did a brief test on Windows (several months ago), I didn't notice any problems there either. (Granted,...

> I didn't understand how to set the MTU to 23 sadly You should be able to just comment out these lines: https://github.com/tttapa/Control-Surface/blob/7a3b189776bb01bcbd24da38b58703a6923716e0/src/MIDI_Interfaces/BLEMIDI/ESP32/midi-init.c#L47-L51

> but I remember that there was some problem with this approach (its somewhere hardcoded that CCPotentiometer or CCButton have to have 8 or 16 elements... That's not the case,...

I got most of my information about the MCU protocol from this manual: https://images.thomann.de/pics/prod/151261_manual.pdf Most DAWs don't implement it exactly, though, but most of it should be very similar.

Yes, you can use Control Surface on an Arduino Mega. However, AVR is not the main target platform, and I wouldn't recommend it at all if you want to use...

You could do that, but personally, I'd buy a board that does support MIDI over USB. If you do decide to build a separate MIDI to USB adapter, keep in...