Originally posted by **marlow77** October 9, 2023
Hello,
I'm trying to do what is stated in this discussion:
https://github.com/tttapa/Control-Surface/issues/283
Specifically, I have a 4067 mux and a TTP223 touch sensor attached to one of the pins and had to invert the pins to read them, but it works great!
But then i wanted to add a piezo device to update the velocity for the mux values to create a midi button controller, but it gives me the following error:
-----------------------------------------------------------
error: request for member 'setVelocity' in 'buttons', which is of non-class type 'CS::Bankable::NoteButton [16]'
buttons.setVelocity(velocityInput.getValue());
^~~~~~~~~~~
exit status 1
Compilation error: request for member 'setVelocity' in 'buttons', which is of non-class type 'CS::Bankable::NoteButton [16]'
-------------------------------------------------------------
I looked in the code and NoteButtons has that setVelocity option, so I don't understand why it isn't working. Any help would be appreciated.
This is the full arduino code I have so far, and works if I remove the velocity section I took from the earlier post I referenced above.
`/**
* @brief This is an example of the AnalogMultiplex class.
*
* ### Connections
* - 9: CD74HC4067 address pin S0
* - 10: CD74HC4067 address pin S1
* - 11: CD74HC4067 address pin S2
* - 12: CD74HC4067 address pin S3
* - A0: CD74HC4067 signal pin ("common input/output")
*
* Optionally you can connect the enable pin as well, this is useful
* if you want to use multiple multiplexers with the same address
* lines and the same analog input. Otherwise, just connect the enable
* pin to ground.
*
* If you are using a 3-bit multiplexer, like the CD74HC4051, you can
* uncomment the code specific to this multiplexer, and only use three
* address pins.
*
* ### Behavior
* Connect some potentiometers or other analog sensors to the 16 inputs
* of the multiplexer, and open the serial monitor (CTRL+SHIFT+M) or the
* serial plotter (CTRL+SHIFT+L). You should see all 16 signals printed
* or plotted.
*
* Written by Pieter P, 31-01-2019
* https://github.com/tttapa/Control-Surface
*/
#include // Include the Control Surface library
// Instantiate a MIDI over HairlessMIDI_Interface.
HairlessMIDI_Interface midi;
// Instantiate a Transposer that can transpose from one octave down to one
// octave up
Transposer<-12, +12> transposer;
// Instantiate a Selector to change the transposition
IncrementDecrementSelector selector = {
transposer,
{25, 33},
Wrap::Wrap,
};
CD74HC4067 mux = {
T0, // analog pin
{19, 23, 18, 5}, // Address pins S0, S1, S2, S3
// 13, // Optionally, specify the enable pin
};
using namespace MIDI_Notes;
Bankable::NoteButton buttons[] = {
{transposer, mux.pin(0), {note(C, 2), CHANNEL_1}},
{transposer, mux.pin(1), {note(Db, 2), CHANNEL_1}},
{transposer, mux.pin(2), {note(D, 2), CHANNEL_1}},
{transposer, mux.pin(3), {note(Eb, 2), CHANNEL_1}},
{transposer, mux.pin(4), {note(E, 2), CHANNEL_1}},
{transposer, mux.pin(5), {note(F_, 2), CHANNEL_1}},
{transposer, mux.pin(6), {note(Gb, 2), CHANNEL_1}},
{transposer, mux.pin(7), {note(G, 2), CHANNEL_1}},
{transposer, mux.pin(8), {note(Ab, 2), CHANNEL_1}},
{transposer, mux.pin(9), {note(A, 2), CHANNEL_1}},
{transposer, mux.pin(10), {note(Bb, 2), CHANNEL_1}},
{transposer, mux.pin(11), {note(B, 2), CHANNEL_1}},
{transposer, mux.pin(12), {note(C, 3), CHANNEL_1}},
{transposer, mux.pin(13), {note(Db, 3), CHANNEL_1}},
{transposer, mux.pin(14), {note(D, 3), CHANNEL_1}},
{transposer, mux.pin(15), {note(Eb, 3), CHANNEL_1}},
};
// 7-bit filtered analog input for velocity control
FilteredAnalog<7> velocityInput = 35;
void setup() {
Serial.begin(115200);
Control_Surface.begin();
mux.begin(); // Initialize multiplexer
for (auto &button : buttons) // for each button in the buttons array
button.invert();
}
void loop() {
if (velocityInput.update())
buttons.setVelocity(velocityInput.getValue());
Control_Surface.loop();
}`
tttapa
commented
8 months ago
Discussed in https://github.com/tttapa/Control-Surface/discussions/959