/**
 * Simple Read
 * 
 * Read data from the serial port and change the color of a rectangle
 */

import processing.serial.*;

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


void setup() 
{
  size(500, 500);
  // I know that the first port in the serial list on my mac
  // is always my  FTDI adaptor, so I open Serial.list()[0].
  // On Windows machines, this generally opens COM1.
  // Open whatever port is the one you're using.
  
  printArray(Serial.list());
  String portName = "COM11";
  myPort = new Serial(this, portName, 9600);
}

void draw()
{
// while(true){  
  if ( myPort.available() > 0) {  // If data is available,
    val = myPort.read();         // read it and store it in val
  }
  background(19, 255, 20);             // Set background to green
     
  if (val == 48) {              // If the serial value is 48,
    fill(1, 20, 255);                   // set fill to blue
  } 
  else {                       // If the serial value is not 48,
    fill(255, 255, 0);                 // set fill to yellow
  }
   rect(100, 100, 300, 300);
   delay (50);
   print(val);
 //}
}



/*

// Wiring / Arduino Code
// Code for sensing a switch status and writing the value to the serial port.

int switchPin = 4;                       // Switch connected to pin 4

void setup() {
  pinMode(switchPin, INPUT);             // Set pin 0 as an input
  Serial.begin(9600);                    // Start serial communication at 9600 bps
}

void loop() {
  if (digitalRead(switchPin) == HIGH) {  // If switch is ON,
    Serial.write(1);               // send 1 to Processing
  } else {                               // If the switch is not ON,
    Serial.write(0);               // send 0 to Processing
  }
  delay(100);                            // Wait 100 milliseconds
}

*/