button presses from arduino

simplebuttonpress.pde

import processing.serial.*;

Serial arduinoPort;
String oldValue;

PFont cityFont, timeFont, weatherFont;
PImage backgroundImg;
PImage conditionImg;
PImage windImg;

void setup() {
  size(1024, 768);
  frameRate(24);

  // set up the communication between the Arduino and the Processing app
  arduinoPort = new Serial(this, Serial.list()[0], 9600);
  
  cityFont = loadFont("UbuntuCondensed-Regular-45.vlw");
  timeFont = loadFont("UbuntuCondensed-Regular-18.vlw");
  weatherFont = loadFont("UbuntuCondensed-Regular-22.vlw");

  backgroundImg = loadImage("weatherbg.jpg");

}

void readButtonPress(Serial arduinoPort) {  
  byte[] inBuffer = new byte[50];
  while (arduinoPort.available () > 0) {
    inBuffer = arduinoPort.readBytes();
    arduinoPort.readBytes(inBuffer);
    if (inBuffer != null) {
      String myString = new String(inBuffer); // read string from arduino
      println(myString); // pin 2: HNL, pin 4: SFO, pin 6: CHI, pin 8: NYC
      if (myString != oldValue) {

        if (myString.equals("HNL")) { // compare arduino input with string
          println("now displaying weather for Honolulu, HI");
          
          
          imageMode(CORNERS);
          image(backgroundImg, 0, 0);

          textAlign(LEFT, TOP);
          textFont(cityFont, 45);
          fill(0, 200);
          text("[honolulu, hi]", 15, 15);

          textFont(timeFont, 18);
          text("[time]", 15, 65);

          textFont(weatherFont, 22);
          text("[tempF]" + "° F / " + "[tempC]" + "° C", 75, 110);
          text("[conditions]", 75, 135);

          windImg = loadImage("wind-icon.gif");
          image(windImg, 15, 185);
          text("WIND: " + "[wind]", 75, 185, 300, 60);
          text("SPEED/DIRECTION: ", 75, 250);
          text("[wind speed]" + " MPH from the " + "[direction]", 75, 275);
        }
        if (myString.equals("SFO")) {
          println("now displaying weather for San Francisco, CA");
          
          imageMode(CORNERS);
          image(backgroundImg, 0, 0);

          textAlign(LEFT, TOP);
          textFont(cityFont, 45);
          fill(0, 200);
          text("[san francisco, ca]", 15, 15);

          textFont(timeFont, 18);
          text("[time]", 15, 65);

          textFont(weatherFont, 22);
          text("[tempF]" + "° F / " + "[tempC]" + "° C", 75, 110);
          text("[conditions]", 75, 135);

          windImg = loadImage("wind-icon.gif");
          image(windImg, 15, 185);
          text("WIND: " + "[wind]", 75, 185, 300, 60);
          text("SPEED/DIRECTION: ", 75, 250);
          text("[wind speed]" + " MPH from the " + "[direction]", 75, 275);
        }
        if (myString.equals("CHI")) {
          println("now displaying weather for Chicago, IL");
          
          imageMode(CORNERS);
          image(backgroundImg, 0, 0);

          textAlign(LEFT, TOP);
          textFont(cityFont, 45);
          fill(0, 200);
          text("[chicago, il]", 15, 15);

          textFont(timeFont, 18);
          text("[time]", 15, 65);

          textFont(weatherFont, 22);
          text("[tempF]" + "° F / " + "[tempC]" + "° C", 75, 110);
          text("[conditions]", 75, 135);

          windImg = loadImage("wind-icon.gif");
          image(windImg, 15, 185);
          text("WIND: " + "[wind]", 75, 185, 300, 60);
          text("SPEED/DIRECTION: ", 75, 250);
          text("[wind speed]" + " MPH from the " + "[direction]", 75, 275);
        }
        if (myString.equals("NYC")) {
          println("now displaying weather for New York, NY");
          imageMode(CORNERS);
          image(backgroundImg, 0, 0);

          textAlign(LEFT, TOP);
          textFont(cityFont, 45);
          fill(0, 200);
          text("[new york, ny]", 15, 15);

          textFont(timeFont, 18);
          text("[time]", 15, 65);

          textFont(weatherFont, 22);
          text("[tempF]" + "° F / " + "[tempC]" + "° C", 75, 110);
          text("[conditions]", 75, 135);

          windImg = loadImage("wind-icon.gif");
          image(windImg, 15, 185);
          text("WIND: " + "[wind]", 75, 185, 300, 60);
          text("SPEED/DIRECTION: ", 75, 250);
          text("[wind speed]" + " MPH from the " + "[direction]", 75, 275);
        }
        myString = oldValue;
      }
    }
  }
}


void draw() {
  readButtonPress(arduinoPort);
}