//Code based on SimpleRead Example in Processing
//Edit by D Conner 2016


import processing.serial.*;

Serial myPort;  // Create object from Serial class
int val;      // Data received from the serial port

void setup()
{
  size(1020, 400);
  String portName = Serial.list()[2];// Port 2 is Com 3 on my computer
  myPort = new Serial(this, portName, 9600);
  val =510;//The sensor has an average initial value of 510.(Max is 1024, so this is almost half.)
}

void draw()
{

  if ( myPort.available() > 0) {  // If data is available,
    String r = myPort.readString();//Read in a string

    String[] outputValues = split(r, " = ");//The expected input is "Out = 'value'"
    if(outputValues.length>1){  //Ensure the data has the Out value
    if(outputValues[0].equals("out")){

       try {
      int n = Integer.parseInt(outputValues[1].trim());//Check to see if input is a integer.
        println(n);
        val = n;
       } catch(NumberFormatException e) {}

     }}
}//If statement(port available)
  background(255);             // Set background to white
  if (val > 510) {              // If the value is greater than 510, color bar green
    fill(0,255,0);
    rect(510, 50, val-510, 100);// make a bar that is the magnitude of the strength
  }
  else {                       // If the value is less than 510, color bar red. Draw bar equal in magnitude.
    fill(255,0,0);
      rect(val, 50, 510-val, 100);
  }


}