Processingによるポート名の確認

import processing.serial.*;

Serial serial_port = null;        // the serial port

// serial port buttons
Button btn_serial_up;             // move up through the serial port list
Button btn_serial_dn;             // move down through the serial port list
Button btn_serial_connect;        // connect to the selected serial port
Button btn_serial_disconnect;     // disconnect from the serial port
Button btn_serial_list_refresh;   // refresh the serial port list
String serial_list;               // list of serial ports
int serial_list_index = 0;        // currently selected serial port
int num_serial_ports = 0;         // number of serial ports in the list

void setup() {
   // set the window size
   size (640, 480);

   // create the buttons
   btn_serial_up = new Button("^", 140, 10, 40, 20);
   btn_serial_dn = new Button("v", 140, 50, 40, 20);
   btn_serial_connect = new Button("Connect", 190, 10, 100, 25);
   btn_serial_disconnect = new Button("Disconnect", 190, 45, 100, 25);
   btn_serial_list_refresh = new Button("Refresh", 190, 80, 100, 25);

   // get the list of serial ports on the computer
   serial_list = Serial.list()[serial_list_index];

   //println(Serial.list());
   //println(Serial.list().length);

   // get the number of serial ports in the list
   num_serial_ports = Serial.list().length;
}

void mousePressed() {
   // up button clicked
   if (btn_serial_up.MouseIsOver()) {
     if (serial_list_index > 0) {
       // move one position up in the list of serial ports
       serial_list_index--;
       serial_list = Serial.list()[serial_list_index];
     }
   }
   // down button clicked
   if (btn_serial_dn.MouseIsOver()) {
     if (serial_list_index < (num_serial_ports - 1)) {
       // move one position down in the list of serial ports
       serial_list_index++;
       serial_list = Serial.list()[serial_list_index];
     }
   }
   // Connect button clicked
   if (btn_serial_connect.MouseIsOver()) {
     if (serial_port == null) {
       // connect to the selected serial port

       serial_port = new Serial(this, Serial.list()[serial_list_index], 9600);
     }
   }
   // Disconnect button clicked
   if (btn_serial_disconnect.MouseIsOver()) {
     if (serial_port != null) {
       // disconnect from the serial port
       serial_port.stop();
       serial_port = null;
     }
   }
   // Refresh button clicked
   if (btn_serial_list_refresh.MouseIsOver()) {
     // get the serial port list and length of the list
     serial_list = Serial.list()[serial_list_index];
     num_serial_ports = Serial.list().length;
   }
}

void draw() {
   // draw the buttons in the application window
   btn_serial_up.Draw();
   btn_serial_dn.Draw();
   btn_serial_connect.Draw();
   btn_serial_disconnect.Draw();
   btn_serial_list_refresh.Draw();
   // draw the text box containing the selected serial port
   DrawTextBox("Select Port", serial_list, 10, 10, 120, 60);
}

// function for drawing a text box with title and contents
void DrawTextBox(String title, String str, int x, int y, int w, int h)
{
   fill(255);
   rect(x, y, w, h);
   fill(0);
   textAlign(LEFT);
   textSize(14);
   text(title, x + 10, y + 10, w - 20, 20);
   textSize(12);
   text(str, x + 10, y + 40, w - 20, h - 10);
}

// button class used for all buttons
class Button {
   String label;
   float x;    // top left corner x position
   float y;    // top left corner y position
   float w;    // width of button
   float h;    // height of button
   
   // constructor
   Button(String labelB, float xpos, float ypos, float widthB, float heightB) {
     label = labelB;
     x = xpos;
     y = ypos;
     w = widthB;
     h = heightB;
   }

   // draw the button in the window
   void Draw() {
     fill(218);
     stroke(141);
     rect(x, y, w, h, 10);
     textAlign(CENTER, CENTER);
     fill(0);
     text(label, x + (w / 2), y + (h / 2));
   }

   // returns true if the mouse cursor is over the button
   boolean MouseIsOver() {
     if (mouseX > x && mouseX < (x + w) && mouseY > y && mouseY < (y + h)) {
       return true;
     }
     return false;
   }
}