/** * LaunchPad GUI *  * Select COM port that LaunchPad is connected to * receive serial communication from LaunchPad for  * instantaneous temperature readings. ***/PFont fontA;char instruct;color backColor;int dataRead;boolean portChosen = false;int COMPort;int [] keyIn = new int[3];int i, keyIndex=0;// The serial port:Serial myPort; void setup(){  //setup window  size(1000, 500);  smooth();  //load font  fontA = loadFont("CourierNew36.vlw");    // Set the font, its size (in units of pixels), and alignment  textAlign(CENTER);    //Set background color  color baseColor = color(70);  backColor = baseColor;  //import serial library  import processing.serial.*;  // List all the available serial ports, then give prompt  println(Serial.list());  println("Please type in the serial COM port that your LaunchPad is connected to.");    background(backColor);  stroke(255);  textFont(fontA, 13);  text("Please, select the COM port that your LaunchPad is connected to.", 265, 20);  textAlign(LEFT);  for(i=0; i<Serial.list().length; i++){    text("[" + i + "] " + Serial.list()[i], 215, 38+13*i);  }  //wait for keypress --> Refer to void keyPressed()}void draw(){  if(portChosen == true){    dataRead= myPort.read();    if(dataRead != -1){            //clear previous temperature reading from screen      background(backColor);      stroke(255);      //Update console      print("Temp: ");      print(dataRead);       println("°");            //Update on screen GUI      text("Current Temperature: ", 420, 60);      text(dataRead, 835, 60);            text("°", 900, 60);                }  }}//wait for key press. Once key is entered, initialize serial com portvoid keyPressed() {   if(portChosen == false){        if (key != 10) //Enter      keyIn[keyIndex++] = key-48;    else    {      COMPort = 0;      for (i = 0; i < keyIndex; i++)        COMPort = COMPort * 10 + keyIn[i];            println(COMPort);      myPort = new Serial(this, Serial.list()[COMPort], 2400);      portChosen = true;      textFont(fontA, 60); // change font size & alignment for temp readings      textAlign(CENTER);    }  }}