LaunchPad温度实验上位机改成摄氏度显示

/*

 * LaunchPad_Temp_GUI.pde

 *

 * LaunchPad Temperature GUI

 *

 * Copyright (C) {YEAR} Texas Instruments Incorporated - http://www.ti.com/ 

 * 

 * 

 *  Redistribution and use in source and binary forms, with or without 

 *  modification, are permitted provided that the following conditions 

 *  are met:

 *

 *    Redistributions of source code must retain the above copyright 

 *    notice, this list of conditions and the following disclaimer.

 *

 *    Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the 

 *    documentation and/or other materials provided with the   

 *    distribution.

 *

 *    Neither the name of Texas Instruments Incorporated nor the names of

 *    its contributors may be used to endorse or promote products derived

 *    from this software without specific prior written permission.

 *

 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 

 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 

 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 

 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 

 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 

 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

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 *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *

*/





/**

 * 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



  

  // 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);

  textSize(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);

  }

  textSize(30);

  text("# =",20, 350);

  //wait for keypress --> Refer to void keyPressed()

}



void draw()

{

  if(portChosen == true){

    dataRead= myPort.read();

    if(dataRead != -1){

      dataRead= (int)((dataRead - 32.0) * 5.0/9.0);//转成摄氏度

      

      //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 port

void keyPressed() { 

  if(portChosen == false){

    

    if (key != 10) //Enter

    {

      keyIn[keyIndex++] = key-48;

      textSize(30);

      text(keyIn[keyIndex-1],100 + (keyIndex*20), 350);

    }

    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;

      textSize( 60); // change font size & alignment for temp readings

      textAlign(CENTER);

    }

  }

}