let port = "/dev/cu.usbmodem1421";

let options = {

  baud: 9600

}

let data;

let wasPlaying2 = false;

let wasPlaying1 = false;

let synth;

let synth2;

let notes1 = ["E2", "C3", "A3"];

let notes2 = ["C4", "A5", "B4"];

​

let mic;

​

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(255, 0, 0);

​

  synth = new p5.PolySynth();

  synth2 = new p5.PolySynth();

  mic = new p5.AudioIn();

  mic.start();

​

  serial = new p5.SerialPort();

​

  // Let's list the ports available

  let portlist = serial.list();

​

  serial.open(port, options);

  serial.on('connected', serverConnected);

  serial.on('list', gotList);

  serial.on('data', gotData);

  serial.on('error', gotError);

  serial.on('open', gotOpen);

}

​

// There is data available to work with from the serial port

function gotData() {

  let currentString = serial.readStringUntil("\r\n");

​

  if (currentString) {

​

    if (currentString == "hello") {

      serial.write(1);

    } else {

​

      background(0, 255, 0);

      data = split(currentString, ",");

​

      for (let i = 0; i < data.length; i++) {

        data[i] = Number(data[i]);

      }

​

      if (data[0] == 1 && !wasPlaying1) {

        for (let i = 0; i < notes1.length; i++) {

          synth.noteAttack(notes1[i], 0.6, 0.1, 0.3);

        }

        wasPlaying = true;

      }

​

      if (data[0] == 0 && wasPlaying1) {

        wasPlaying = false;

      }

​

      if (data[0] == 0 && !wasPlaying1) {

        synth.noteRelease();

      }

​

​

      if (data[1] == 1 && !wasPlaying2) {

        for (let i = 0; i < notes2.length; i++) {

          synth2.noteAttack(notes2[i], 0.6, 0.2, 0.93);

        }

        wasPlaying = true;

      }

​

      if (data[1] == 0 && wasPlaying2) {

        wasPlaying = false;

      }

​

      if (data[1] == 0 && !wasPlaying2) {

        synth2.noteRelease();

      }

​

      let vol = mic.getLevel();

      vol = round(map(vol, 0.0,1.0, 0,255));

​

     // console.log(data + "  mic level:  "+ vol);

      serial.write(vol);

    }

  }

}

​

​

function draw() {

  //background(220);

}

​

function mousePressed() {

  //synth.noteAttack(note, 0.6, 0);

}

​

​

function mouseReleased() {

  //synth.noteRelease();

  playing = false;

}

​

​

// We are connected and ready to go

function serverConnected() {

  console.log("We are connected!");

}

​

// Got the list of ports

function gotList(thelist) {

  // theList is an array of their names

  for (let i = 0; i < thelist.length; i++) {

    // Display in the console

    console.log(i + " " + thelist[i]);

  }

}

​

// Connected to our serial device

function gotOpen() {

  console.log("Serial Port is open!");

}

​

// Ut oh, here is an error, let's log it

function gotError(theerror) {

  console.log(theerror);

}