import processing.serial.*;

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

int LF = 10;

void setup() 
{
  size(200, 200);

  println(Serial.list());

  myPort = new Serial(this, Serial.list()[7], 9600);
  usbPort = new Serial(this, Serial.list()[0], 9600);
}

void draw()
{

  while (myPort.available() > 0) {
    //Expand array size to the number of bytes you expect:
    //    byte[] inBuffer = new byte[4];
    //    int numread = myPort.readBytesUntil(0xFF, inBuffer);
    //    if ((inBuffer != null) && numread>2) {
    //      val = int(inBuffer[0])+(int(inBuffer[1])<<8); // low bit plus high bit
    //      usbPort.write(inBuffer[0]); // echo data byte to thermostat

    val = myPort.read();
    usbPort.write(val);
    
    // converting that reading to voltage, for 3.3v arduino use 3.3
    float voltage = val * 5.0 / 1024;  
    float temp = voltage/0.01; // with single +supply,  LM34 is 10.0 mV/deg F

    //      for(int i=0;i<4;i++) {
    //        print(int(inBuffer[i]));
    //        print(" ");      
    //      }
    //println();
    print(millis());
    print(" ");
    print(val);
    print(" : ");
    print(temp);
    println(" F");
    //  }
  }

  //  delay(100);
}