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test_teensy.ino
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test_teensy.ino
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// includes
#include <Bounce.h>
#include "Adafruit_MPR121.h"
#include "new_piano_samples.h"
#include "guitools.h"
#include "note.h"
// first capacitive "slider"
Adafruit_MPR121 cap1 = Adafruit_MPR121();
Adafruit_MPR121 cap2 = Adafruit_MPR121();
// MPR121
// Keeps track of the last pins touched
// so we know when buttons are 'released'
uint16_t lasttouched1 = 0;
uint16_t currtouched1 = 0;
uint16_t lasttouched2 = 0;
uint16_t currtouched2 = 0;
AudioSynthWavetable* strum_wavetables[24] = {&wavetable, &wavetable1, &wavetable2, &wavetable3, &wavetable4, &wavetable5, &wavetable6, &wavetable7, &wavetable8, &wavetable9, &wavetable10, &wavetable11, &wavetable12, &wavetable13, &wavetable14, &wavetable15, &wavetable16, &wavetable17, &wavetable18, &wavetable19, &wavetable20, &wavetable21, &wavetable22, &wavetable23};
AudioMixer4* mixers_strum_first[6] = {&mixer, &mixer1, &mixer2, &mixer3, &mixer4, &mixer5};
// create 3x9 notes
Note notes[27];
void setup(void)
{
// Set up
AudioMemory(250);
// setup capacitive
if (!cap1.begin(0x5D)) {
Serial.println("MPR121 1 not found, check wiring?");
while (1);
}
// setup capacitive
if (!cap2.begin(0x5A)) {
Serial.println("MPR121 2 not found, check wiring?");
while (1);
}
// setup mixers for Notes Chords
float gain = 1.0;
mixer1.gain(0, gain);
mixer1.gain(1, gain);
mixer1.gain(2, gain);
mixer1.gain(3, gain);
mixer2.gain(0, gain);
mixer2.gain(1, gain);
mixer2.gain(2, gain);
mixer2.gain(3, gain);
mixer3.gain(0, gain);
// setup mixers for strum
for (int i=0; i<6; i++) {
mixers_strum_first[i]->gain(0, 1.0);
mixers_strum_first[i]->gain(1, 1.0);
mixers_strum_first[i]->gain(2, 1.0);
mixers_strum_first[i]->gain(3, 1.0);
}
mixer_sub_1.gain(0, 1.0);
mixer_sub_1.gain(1, 1.0);
mixer_sub_1.gain(2, 1.0);
mixer_sub_2.gain(0, 1.0);
mixer_sub_2.gain(1, 1.0);
mixer_sub_2.gain(2, 1.0);
mixer_main_strum.gain(0, 1.0);
mixer_main_strum.gain(1, 1.0);
// setup instrument for strum wavetable
for (int i=0; i<24; i++) {
strum_wavetables[i]->setInstrument(new_piano);
strum_wavetables[i]->amplitude(1.0);
}
// setup main mixer
mixer_main.gain(0, 0.2);// reduce sound from notes (chords)
mixer_main.gain(1, 2.0);
// setup notes
// Major
notes[0] = createNote("C", 24, &waveform3, &envelope3, &fade3, 262, 262, 0, 0.0, 500, 500, 250);
notes[1] = createNote("D", 25, &waveform4, &envelope4, &fade4, 294, 294, 0, 0.0, 500, 500, 250);
notes[2] = createNote("E", 26, &waveform5, &envelope5, &fade5, 330, 330, 0, 0.0, 500, 500, 250);
notes[3] = createNote("F", 27, &waveform6, &envelope6, &fade6, 349, 349, 0, 0.0, 500, 500, 250);
notes[4] = createNote("G", 28, &waveform7, &envelope7, &fade7, 392, 392, 0, 0.0, 500, 500, 250);
notes[5] = createNote("A", 29, &waveform1, &envelope1, &fade1, 440, 440, 0, 0.0,500, 500, 250);
notes[6] = createNote("B", 30, &waveform2, &envelope2, &fade2, 496, 496, 0, 0.0, 500, 500, 250);
notes[7] = createNote("-", 31, &waveform8, &envelope8, &fade8, 523, 523, 0, 0.0, 500, 500, 250);
notes[8] = createNote("-", 32, &waveform9, &envelope9, &fade9, 554, 554, 0, 0.0, 500, 500, 250);
// Minor
notes[9] = createNote("1", 4, &waveform3, &envelope3, &fade3, 262, 262, 0, 0.0, 500, 500, 250);
notes[10] = createNote("2", 5, &waveform4, &envelope4, &fade4, 294, 294, 0, 0.0, 500, 500, 250);
notes[11] = createNote("3", 6, &waveform5, &envelope5, &fade5, 330, 330, 0, 0.0, 500, 500, 250);
notes[12] = createNote("4", 7, &waveform6, &envelope6, &fade6, 349, 349, 0, 0.0, 500, 500, 250);
notes[13] = createNote("5", 8, &waveform7, &envelope7, &fade7, 392, 392, 0, 0.0, 500, 500, 250);
notes[14] = createNote("6", 9, &waveform1, &envelope1, &fade1, 440, 440, 0, 0.0,500, 500, 250);
notes[15] = createNote("7", 10, &waveform2, &envelope2, &fade2, 496, 496, 0, 0.0, 500, 500, 250);
notes[16] = createNote("8", 11, &waveform8, &envelope8, &fade8, 523, 523, 0, 0.0, 500, 500, 250);
notes[17] = createNote("9", 12, &waveform9, &envelope9, &fade9, 554, 554, 0, 0.0, 500, 500, 250);
// 7th
notes[18] = createNote("a1", 37, &waveform3, &envelope3, &fade3, 262, 262, 0, 0.0, 500, 500, 250);
notes[19] = createNote("a2", 36, &waveform4, &envelope4, &fade4, 294, 294, 0, 0.0, 500, 500, 250);
notes[20] = createNote("a3", 35, &waveform5, &envelope5, &fade5, 330, 330, 0, 0.0, 500, 500, 250);
notes[21] = createNote("a4", 34, &waveform6, &envelope6, &fade6, 349, 349, 0, 0.0, 500, 500, 250);
notes[22] = createNote("a5", 33, &waveform7, &envelope7, &fade7, 392, 392, 0, 0.0, 500, 500, 250);
notes[23] = createNote("a6", 0, &waveform1, &envelope1, &fade1, 440, 440, 0, 0.0,500, 500, 250);
notes[24] = createNote("a7", 1, &waveform2, &envelope2, &fade2, 496, 496, 0, 0.0, 500, 500, 250);
notes[25] = createNote("a8", 2, &waveform8, &envelope8, &fade8, 523, 523, 0, 0.0, 500, 500, 250);
notes[26] = createNote("a9", 3, &waveform9, &envelope9, &fade9, 554, 554, 0, 0.0, 500, 500, 250);
}
float map(float s, float a1, float a2, float b1, float b2)
{
return b1 + (s-a1)*(b2-b1)/(a2-a1);
}
float last_frequency_note = 0.0;
void loop() {
// for each buttons, check if it is touched
for (int i=0; i<27; i++) {
Note note = notes[i];
if (note.button->update()) {
if (note.button->fallingEdge()) {
Serial.println(note.name);
note.envelope->noteOn();
last_frequency_note = note.frequency;
}
if (note.button->risingEdge()) {
note.envelope->noteOff();
}
}
}
// Serial.println(last_frequency_note);
// STRUMMING
// Get the currently touched pads 1
currtouched1 = cap1.touched();
for (uint8_t i=0; i<12; i++) {
if ((currtouched1 & _BV(i)) && !(lasttouched1 & _BV(i)) ) {
Serial.print(i); Serial.println(" touched");
// strum_wavetables[i]->playFrequency(map(i, 0, 23, last_frequency_note*0.5, last_frequency_note*3));
strum_wavetables[i]->playNote(10+i+int(last_frequency_note/10.0));
}
if (!(currtouched1 & _BV(i)) && (lasttouched1 & _BV(i)) ) {
//Serial.print(i); Serial.println(" released");
}
}
lasttouched1 = currtouched1;
// Get the currently touched pads 2
currtouched2 = cap2.touched();
for (uint8_t i=0; i<12; i++) {
if ((currtouched2 & _BV(i)) && !(lasttouched2 & _BV(i)) ) {
Serial.print(i+12); Serial.println(" touched");
// strum_wavetables[i]->playFrequency(map(i+12, 0, 23, last_frequency_note*0.5, last_frequency_note*3));
strum_wavetables[i+12]->playNote(10+(i+12)+int(last_frequency_note/10.0));
}
if (!(currtouched2 & _BV(i)) && (lasttouched2 & _BV(i)) ) {
//Serial.print(i+12); Serial.println(" released");
}
}
lasttouched2 = currtouched2;
delay(20);
}