Hello, everyone!
I'm trying to build a midi controller with 16 rotary potontiometers and 1 slide potentiometer. I'm using an arduino uno with 1 multiplexer 4067.
I testing the multiplexer using this code:
#include "Multiplexer4067.h"
//* Define s0, s1, s2, s3, and x pins
#define s0 4
#define s1 5
#define s2 6
#define s3 7
#define x1 A0
Multiplexer4067 mplex = Multiplexer4067(s0, s1, s2, s3, x1);
const int N_MUX_PINS = 1; // total number of components connected to the mux
int muxPin[N_MUX_PINS] = {0}; // pins used int the mux
void setup() {
Serial.begin(115200);
mplex.begin();
pinMode(x1, INPUT_PULLUP);
}
void loop() {
readMux();
//Serial.println("??");
delay(50);
}
// Reads the mux pins and prints its values in the serial monitor
void readMux() {
for (int i = 0; i < N_MUX_PINS; i++) {
Serial.print(i);
Serial.print(": ");
//Serial.print(map(mplex.readChannel(i), 0, 1022, 0, 127));
Serial.print(mplex.readChannel(muxPin[i]));
Serial.print(" ");
}
// Serial.print(mplex.readChannel(0));
Serial.println();
delay(10);
}
When i move the pots, it's work. Serial monitor can read the value.
The problem is when i using this code:
// LIBRARY
#include <MIDI.h>
MIDI_CREATE_DEFAULT_INSTANCE();
#include <Multiplexer4067.h>
#define N_Mux 1
#define s0 4
#define s1 5
#define s2 6
#define s3 7
#define x1 A0
#define x2 A1
Multiplexer4067 mux[N_Mux] = {
Multiplexer4067(s0, s1, s2, s3, x1)
};
//POTENTIOMETERS
const int N_Pots = 17;
const int NPots_Arduino = 1;
const int NPots_ArduinoPin[N_Pots] = {A1};
int potCState[N_Pots] = {0};
int potPState[N_Pots] = {0};
int midiCState[N_Pots] = {0};
int midiPState[N_Pots] = {0};
int potThreshold = 25;
int potVar = 0;
int lastCcValue[N_Pots] = {0};
unsigned long timer[N_Pots] = {0};
unsigned long lastPotTime[N_Pots] = {0};
const int timeout = 300;
boolean potMoving = true;
//POTENTIOMETERS MUX
const int NPots_PerMux[N_Mux] = {16};
const int NPots_MuxPin[N_Mux][16] = {
{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}
};
//MIDI
byte midiChannel = 1;
byte note = 36;
byte cc = 1;
// ---------------------------------------------------------------------
void setup() {
Serial.begin(115200);
for (int i = 0; i < N_Mux; i++) {
mux[i].begin();
pinMode(x1, INPUT_PULLUP);
}
}
void loop() {
potentiometers();
}
void potentiometers() {
for (int i = 0; i < NPots_Arduino; i++) {
potCState[i] = analogRead(NPots_ArduinoPin[i]);
int nPotsPerMuxSum = NPots_Arduino;
for (int j = 0; j < N_Mux; j++) {
for (int i = 0; i < NPots_PerMux[j]; i++) {
potCState[i + nPotsPerMuxSum] = mux[j].readChannel(NPots_MuxPin[j][i]);
}
nPotsPerMuxSum += NPots_PerMux[j];
}
midiCState[i] = map(potCState[i], 0, 1023, 0, 127);
int potVar = abs(potCState[i] - potPState[i]);
if (potVar > potThreshold) {
timer[i] = millis();
}
timer[i] = millis() - timer[i];
if (timer[i] < timeout) {
potMoving = true;
} else {
potMoving = false;
}
if (potMoving == true) {
if (midiCState[i] != midiPState[i]) {
MIDI.sendControlChange(cc + i, midiCState[i], midiChannel);
midiPState[i] = midiCState[i];
potPState[i] = midiCState[i];
}
}
}
}
Hairless MIDI can't be read the pots from multiplexer. They only read the potentiometer from pin A1. Can someone give me a clue what's wrong with my code?
