Hello,

I'm trying to write a simple little program that interacts with an Arduino. Basically you step on 3 different Force Sensitive Resistors. Each FSR is assigned to a different picture on the computer monitor that Processing gives you. When I write this program with simple key presses (i.e - press the key '1', it gives you this picture, press the key '2', that picture) it works no problem.
However, when I have it communicate with the Arduino I can only get the last picture in my if statements to load but the print() statements all work and give me the value of the FSR.

1. import processing.serial.*;
   
   PImage[] imgs = new PImage[4];
   int FSR1;
   int FSR2;
   int FSR3;
   
   Serial myPort;
   
   void setup() {
    
      size (1200,1000); 
     String[] mypicnames = {"dancing_mam1.png","dancing_mam2.png","dancing_mam3.png","dancing_mam4.png"};
     for (int i = 0; i < mypicnames.length; i++) {
       imgs[i] = loadImage(mypicnames[i]);
     }
    
      myPort = new Serial(this, Serial.list()[1], 9600);
      myPort.bufferUntil('\n');
   }
   
   void draw() {
   
   if (FSR1 > 1) {
       background(255);
       image(imgs[0], 400, 100);   ///here the image does not load
       print(FSR1);                      ///but here it prints out this value
       print(",");
   }
   
   if (FSR2 > 1) {
       background(255);           
       image(imgs[1], 400,100);              //here the image does not load
       print(FSR2);                                //but it prints out this value
       print(",");
   }
   
   if (FSR3 >1) {
       background(255);
       image(imgs[2], 400,100);                   //here the image DOES load AND the value prints out
       print(FSR3);                                     //if I comment out this code, than the second if statement works.
       print(",");
   }
   else {   
   background(255);                                //this code works no problem
   image(imgs[3], 400, 100);
     }
   
   }
   
   void serialEvent(Serial myPort) {
   
     String inString = myPort.readStringUntil('\n');
   
     if (inString != null) {
       inString = trim(inString);
   
       int[] FSRs = int(split(inString, ","));
    
       if (FSRs.length >=3) {
         FSR1 = FSRs[0];
         FSR2 = FSRs[1];
         FSR3 = FSRs[2];
       }
     }
   }
   

And just in case here is a simple version of the Arduino code:

1.  int FSR1 = 0;
    int FSR2 = 1;
    int FSR3 = 2;
   
   void setup() {
     Serial.begin(9600);
   }
   
   void loop() {
     Serial.print(analogRead(FSR1));
     Serial.print(",");
     Serial.print(analogRead(FSR2));
     Serial.print(",");
     Serial.print(analogRead(FSR3));
     Serial.print(",");
     Serial.println("");
     delay(100);
   }