guitar_lights.ino

#include "cocotouch.h"
#include <Adafruit_NeoPixel.h>
#include <avr/power.h>

#define PIN            8

#define NUMPIXELS     60

char index;
uint8_t idx;
uint8_t midiNotes[6];
uint8_t states[6];
CocoTouch touch;


uint8_t notes[12] = {35, 38, 40, 42, 46, 43, 48, 47, 41, 51, 49, 52};

uint8_t colors[12][3] = {
  {231,52,106},
  {241,156,166},
  {232,194,85},
  {238,115,13},
  {237,220,77},
  {233,68,65},
  {195,217,78},
  {152,80,152},
  {45,116,187},
  {145,211,232},
  {200,109,68},
  {142,207,205},
};

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  if (!touch.begin()) { while(1){;} }
#if defined (__AVR_ATtiny85__)
  if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
#endif
 
  pixels.begin(); // This initializes the NeoPixel library.
  touch.setMIDIProgram(26, 1);

}

void loop() {
    for (idx = 0; idx <= 5; idx++) {
      if (states[idx] == 0 && touch.getTouched(idx) == 1) {
        touch.playMIDINote(midiNotes[idx], 127, 1);
        states[idx] = 1;

        pixels.setPixelColor(idx * 5, pixels.Color(colors[idx][0],colors[idx][1],colors[idx][2]));
        pixels.setPixelColor(idx * 5 + 1, pixels.Color(colors[idx][0],colors[idx][1],colors[idx][2]));
        pixels.setPixelColor(idx * 5 + 2, pixels.Color(colors[idx][0],colors[idx][1],colors[idx][2]));
        pixels.setPixelColor(idx * 5 + 3, pixels.Color(colors[idx][0],colors[idx][1],colors[idx][2]));
        pixels.setPixelColor(idx * 5 + 4, pixels.Color(colors[idx][0],colors[idx][1],colors[idx][2]));
        
        pixels.show();
        
      } else if (states[idx] == 1 && touch.getTouched(idx) < 1) {
        states[idx] = 0;

        pixels.setPixelColor(idx * 5, pixels.Color(0, 0, 0));
        pixels.setPixelColor(idx * 5 + 1, pixels.Color(0, 0, 0));
        pixels.setPixelColor(idx * 5 + 2, pixels.Color(0, 0, 0));
        pixels.setPixelColor(idx * 5 + 3, pixels.Color(0, 0, 0));
        pixels.setPixelColor(idx * 5 + 4, pixels.Color(0, 0, 0));
        
        pixels.show();
      }
    }
    if (touch.getTouched(6) == 1) {
      midiNotes[0] = 43;
      midiNotes[1] = 48;
      midiNotes[2] = 52;
      midiNotes[3] = 55;
      midiNotes[4] = 60;
      midiNotes[5] = 64;
    } else if (touch.getTouched(7) == 1) {
      midiNotes[0] = 45;
      midiNotes[1] = 50;
      midiNotes[2] = 54;
      midiNotes[3] = 57;
      midiNotes[4] = 62;
      midiNotes[5] = 66;
    } else if (touch.getTouched(8) == 1) {
      midiNotes[0] = 43;
      midiNotes[1] = 47;
      midiNotes[2] = 52;
      midiNotes[3] = 55;
      midiNotes[4] = 59;
      midiNotes[5] = 64;
    } else if (touch.getTouched(9) == 1) {
      midiNotes[0] = 45;
      midiNotes[1] = 48;
      midiNotes[2] = 53;
      midiNotes[3] = 57;
      midiNotes[4] = 60;
      midiNotes[5] = 65;
    } else if (touch.getTouched(10) == 1) {
      midiNotes[0] = 47;
      midiNotes[1] = 50;
      midiNotes[2] = 55;
      midiNotes[3] = 59;
      midiNotes[4] = 62;
      midiNotes[5] = 67;
    } else if (touch.getTouched(11) == 1) {
      midiNotes[0] = 45;
      midiNotes[1] = 48;
      midiNotes[2] = 52;
      midiNotes[3] = 57;
      midiNotes[4] = 60;
      midiNotes[5] = 64;
    }

}