/* Use arrays to manage lists of knobs/pots and pushbuttons.
By Leif Oddson
https://forum.pjrc.com/threads/45376
This more complex example demonstrates how to use arrays to
manage a larger number of inputs, without duplicating your
code for every signal.
You must select MIDI from the "Tools > USB Type" menu
This example code is in the public domain.
*/
//************LIBRARIES USED**************
// include the ResponsiveAnalogRead library for analog smoothing
#include <ResponsiveAnalogRead.h>
// include the Bounce library for 'de-bouncing' switches -- removing electrical chatter as contacts settle
#include <Bounce.h>
//usbMIDI.h library is added automatically when code is compiled as a MIDI device
// ******CONSTANT VALUES********
// customize code behaviour here!
const int channel = 1; // MIDI channel
const int A_PINS = 5; // number of Analog PINS
const int D_PINS = 6; // number of Digital PINS
const int ON_VELOCITY = 99; // note-one velocity sent from buttons (should be 65 to 127)
// define the pins you want to use and the CC ID numbers on which to send them..
const int ANALOG_PINS[A_PINS] = {A0,A1,A2,A3,A4,};
const int CCID[A_PINS] = {21,22,23,24,25,};
// define the pins and notes for digital events
const int DIGITAL_PINS[D_PINS] = {0,1,2,3,4,5};
const int note[D_PINS] = {60,61,62,63,64,65};
const int BOUNCE_TIME = 5; // 5 ms is usually sufficient
const boolean toggled = true;
//******VARIABLES***********
// a data array and a lagged copy to tell when MIDI changes are required
byte data[A_PINS];
byte dataLag[A_PINS]; // when lag and new are not the same then update MIDI CC value
//************INITIALIZE LIBRARY OBJECTS**************
// not sure if there is a better way... some way run a setup loop on global array??
// use comment tags to comment out unused portions of array definitions
// initialize the ReponsiveAnalogRead objects
ResponsiveAnalogRead analog[]{
{ANALOG_PINS[0],true},
{ANALOG_PINS[1],true},
{ANALOG_PINS[2],true},
{ANALOG_PINS[3],true},
{ANALOG_PINS[4],true},/*
{ANALOG_PINS[5],true},
{ANALOG_PINS[6],true}
{ANALOG_PINS[7],true},*/
};
// initialize the bounce objects
Bounce digital[] = {
Bounce(DIGITAL_PINS[0],BOUNCE_TIME),
Bounce(DIGITAL_PINS[1], BOUNCE_TIME),
Bounce(DIGITAL_PINS[2], BOUNCE_TIME),
Bounce(DIGITAL_PINS[3], BOUNCE_TIME),
Bounce(DIGITAL_PINS[4], BOUNCE_TIME),
Bounce(DIGITAL_PINS[5], BOUNCE_TIME),/*
Bounce(DIGITAL_PINS[6], BOUNCE_TIME),
Bounce(DIGITAL_PINS[7], BOUNCE_TIME),*/
};
//************SETUP**************
void setup() {
// loop to configure input pins and internal pullup resisters for digital section
for (int i=0;i<D_PINS;i++){
pinMode(DIGITAL_PINS[i], INPUT_PULLUP);
}
}
//************LOOP**************
void loop() {
getAnalogData();
getDigitalData();
while (usbMIDI.read()) {
// controllers must call .read() to keep the queue clear even if they are not responding to MIDI
}
}
//************ANALOG SECTION**************
void getAnalogData(){
for (int i=0;i<A_PINS;i++){
// update the ResponsiveAnalogRead object every loop
analog[i].update();
// if the repsonsive value has change, print out 'changed'
if(analog[i].hasChanged()) {
data[i] = analog[i].getValue()>>3;
if (data[i] != dataLag[i]){
dataLag[i] = data[i];
usbMIDI.sendControlChange(CCID[i], data[i], channel);
}
}
}
}
const int D_LEDS = 6; // How many Pins for LEDS
const int DIGITAL_LEDS[D_LEDS] = {7,8,9,10,11,12}; // Numbers of the LED Pins
//************DIGITAL SECTION**************
void getDigitalData(){
for (int i=0;i<D_PINS;i++){
digital[i].update();
if (digital[i].risingEdge()) {
usbMIDI.sendNoteOn(note[i], ON_VELOCITY, channel);
digitalWrite(DIGITAL_LEDS[0], LOW); // TURNS OFF DIGITAL_LEDS 1 - PIN 7
digitalWrite(DIGITAL_LEDS[1], LOW); // TURNS OFF DIGITAL_LEDS 2 - PIN 8
digitalWrite(DIGITAL_LEDS[2], LOW); // TURNS OFF DIGITAL_LEDS 3 - PIN 9
digitalWrite(DIGITAL_LEDS[3], LOW); // TURNS OFF DIGITAL_LEDS 4 - PIN 10
digitalWrite(DIGITAL_LEDS[4], LOW); // TURNS OFF DIGITAL_LEDS 5 - PIN 11
digitalWrite(DIGITAL_LEDS[5], LOW); // TURNS OFF DIGITAL_LEDS 6 - PIN 12
}
// Note Off messages when each button is released
if (digital[i].fallingEdge()) {
usbMIDI.sendNoteOff(note[i], 0, channel);
digitalWrite(DIGITAL_LEDS[i], HIGH); // TURN ON THE PRESSED BUTTON EQUIVALENT LED WHEN BUTTON IS RELEASED.
Serial.print(" Note OFF ");
}
}
}
