Trying to create a Midi pedalboard for Hauptwerk

Projects Programming
1

As it says in the title, I've wired up a 32 note pedal board from a pipe organ to control the Hauptwerk virtual pipe organ software. The pedal board has 32 individual switches. The board is a Due, being used with native USB. I'm using digital pins 2-10 and 22-44.

Here's my sketch:

#include <Control_Surface.h>
#include <MIDIUSB.h>
#include <MIDIUSB_Defs.h>
#include <frequencyToNote.h>
#include <pitchToFrequency.h>
#include <pitchToNote.h>

USBMIDI_Interface pedals;

const uint8_t velocity = 0b1111111; // Maximum velocity (0b1111111 = 0x7F = 127)
const uint8_t channel = 4; // MIDI channel 4


Digital buttons[] = {
  { 2, pitchC1, channel, velocity }, // button connected to pin 2, sends MIDI note C1 on channel 4 with velocity 127
  { 3, pitchD1b, channel, velocity },
  { 4, pitchD1, channel, velocity },
  { 5, pitchE1b, channel, velocity },
  { 6, pitchE1, channel, velocity },
  { 7, pitchF_1, channel, velocity },
  { 8, pitchG1b, channel, velocity },
  { 9, pitchG1, channel, velocity },
  {10, pitchA1b, channel, velocity },
  {22, pitchA1, channel, velocity },
  {23, pitchB1b, channel, velocity },
  {24, pitchB1, channel, velocity }
  {25, pitchC2, channel, velocity }, 
  {26, pitchD2b, channel, velocity },
  {27, pitchD2, channel, velocity },
  {28, pitchE2b, channel, velocity },
  {29, pitchE2, channel, velocity },
  {30, pitchF_2, channel, velocity },
  {31, pitchG2b, channel, velocity },
  {32, pitchG2, channel, velocity },
  {33, pitchA2b, channel, velocity },
  {34, pitchA2, channel, velocity },
  {35, pitchB2b, channel, velocity },
  {36, pitchB2, channel, velocity }
  {37, pitchC3, channel, velocity }, 
  {38, pitchD3b, channel, velocity },
  {39, pitchD3, channel, velocity },
  {40, pitchE3b, channel, velocity },
  {41, pitchE3, channel, velocity },
  {42, pitchF_3, channel, velocity },
  {43, pitchG3b, channel, velocity },
  {44, pitchG3, channel, velocity }
  
};

void setup() {
    Control_Surface.begin();
}
void loop() {  // Refresh the buttons (check whether a button's state has changed since last time, if so, send it over MIDI)
  Control_Surface.loop();

}

and the error I'm getting on compile is:

In file included from C:\Users\kurts\Documents\Arduino\libraries\Control_Surface_main\src/Display/Helpers/Bresenham.hpp:5:0,
                 from C:\Users\kurts\Documents\Arduino\libraries\Control_Surface_main\src/Display/MCU/VUDisplay.hpp:102,
                 from C:\Users\kurts\Documents\Arduino\libraries\Control_Surface_main\src/Control_Surface.h:25,
                 from C:\Users\kurts\Documents\Arduino\Pedalboard 32\Pedalboard 32.ino:1:
C:\Users\kurts\Documents\Arduino\libraries\Control_Surface_main\src/AH/STL/cmath:16:31: note: #pragma message: FMA math fix
 #pragma message("FMA math fix")
                               ^
C:\Users\kurts\Documents\Arduino\Pedalboard 32\Pedalboard 32.ino:14:1: error: 'Digital' does not name a type
 Digital buttons[] = {
 ^

exit status 1

Compilation error: 'Digital' does not name a type
2

A type name is required. Did you misspell 'Digital'?
Where and how is Digital declared?

3

Thanks for the reply. That's exactly the problem. I have tried several different ways of declaring it, each one returns an error message. The code is based on an example from PieterP using his control surface library.

4

please provide the link to the example

5

Here's the example I based it off of:

#include <MIDI_Controller.h> // Include the library

const uint8_t velocity = 0b1111111; // Maximum velocity (0b1111111 = 0x7F = 127)
const uint8_t channel = 1; // MIDI channel 1

// Create an array of 14 new instances of the class 'Digital', called 'buttons', 
// on pins 0,1, ..., 13 that send MIDI messages with notes 
// 12, 13, ..., 25 on MIDI channel 1, with maximum velocity (127)
Digital buttons[] = {
  { 0, 12, channel, velocity }, // button connected to pin 0, sends MIDI note 12 on channel 1 with velocity 127
  { 1, 13, channel, velocity },
  { 2, 14, channel, velocity },
  { 3, 15, channel, velocity },
  { 4, 16, channel, velocity },
  { 5, 17, channel, velocity },
  { 6, 18, channel, velocity },
  { 7, 19, channel, velocity },
  { 8, 20, channel, velocity },
  { 9, 21, channel, velocity },
  {10, 22, channel, velocity },
  {11, 23, channel, velocity },
  {12, 24, channel, velocity },
  {13, 25, channel, velocity }
};

// Create an array of 6 new instances of the class 'Analog', called 'potentiometers', 
// on pins A0, A1, .., A5 that send MIDI CC messages with controller numbers 16, 17, ... 21
// on MIDI channel 1
Analog potentiometers[] = {
  { A0, 16, channel }, // potentiometer connected to pin A0, sends CC #16 on MIDI channel 1
  { A1, 17, channel },
  { A2, 18, channel },
  { A3, 19, channel },
  { A4, 20, channel },
  { A5, 21, channel },
};

void setup() {} // nothing to set up

void loop() {  // Refresh the buttons and potentiometers (check whether a button's state or a potentiometer's position has changed since last time, if so, send it over MIDI)
  MIDI_Controller.refresh();
}
6

which library you don't use in your code…

a7

7

Correct, I just added it. Just have a few more errors to eliminate now. I'll report back.

8

OK, now I get this. I have double and triple checked, I have no open brackets. What am I doing wrong?

Error
Error939×269 47.3 KB

1 Like
9

Posting an illegible picture of your error. Cut and paste that and get much more attention!

Post the code, too. We need the context.

a7

1 Like
10

Thanks for the input. If you click on the picture it brings up the full size photo. But, since you requested it, Here's the complete code:

#include <Control_Surface.h>

#include <MIDI_Controller.h>

//#include <MIDI.h>

#include <MIDIUSB.h>
//#include <MIDIUSB_Defs.h>
//#include <frequencyToNote.h>
//#include <pitchToFrequency.h>
#include <pitchToNote.h>

USBMIDI_Interface pedals;

const uint8_t velocity = 0b1111111; // Maximum velocity (0b1111111 = 0x7F = 127)
const uint8_t channel = 4; // MIDI channel 4


Digital buttons[] {
  { 2, pitchC1, channel, velocity }, // button connected to pin 2, sends MIDI note C1 on channel 4 with velocity 127
  { 3, pitchD1b, channel, velocity },
  { 4, pitchD1, channel, velocity },
  { 5, pitchE1b, channel, velocity },
  { 6, pitchE1, channel, velocity },
  { 7, pitchF1, channel, velocity },
  { 8, pitchG1b, channel, velocity },
  { 9, pitchG1, channel, velocity },
  {10, pitchA1b, channel, velocity },
  {22, pitchA1, channel, velocity },
  {23, pitchB1b, channel, velocity },
  {24, pitchB1, channel, velocity },
  {25, pitchC2, channel, velocity }, 
  {26, pitchD2b, channel, velocity },
  {27, pitchD2, channel, velocity },
  {28, pitchE2b, channel, velocity },
  {29, pitchE2, channel, velocity },
  {30, pitchF2, channel, velocity },
  {31, pitchG2b, channel, velocity },
  {32, pitchG2, channel, velocity },
  {33, pitchA2b, channel, velocity },
  {34, pitchA2, channel, velocity },
  {35, pitchB2b, channel, velocity },
  {36, pitchB2, channel, velocity },
  {37, pitchC3, channel, velocity }, 
  {38, pitchD3b, channel, velocity },
  {39, pitchD3, channel, velocity },
  {40, pitchE3b, channel, velocity },
  {41, pitchE3, channel, velocity },
  {42, pitchF3, channel, velocity },
  {43, pitchG3b, channel, velocity },
  {44, pitchG3, channel, velocity }
  
}
 
void setup() { Control_Surface.begin(); }
void loop() { Control_Surface.loop(); }

and error message:

C:\Users\kurts\Documents\Arduino\Pedalboard 32\Pedalboard 32.ino:56:39: error: expected '}' at end of input
void loop() { Control_Surface.loop(); }
                                      ^
C:\Users\kurts\Documents\Arduino\Pedalboard 32\Pedalboard 32.ino:56:39: error: expected unqualified-id at end of input

exit status 1

Compilation error: expected '}' at end of input
11

You omitted semicolon after the Digital buttons[] structure definition.

12

Then you have a corrupt library that misses a closing bracket.

13

I have abandoned this sketch and written another which works perfectly. Thanks everyone for all the help and suggestions

14

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