Calibrate works?

lib/serial/examples/SerialDuplex/SerialDuplex.pde

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+/**
+ * Serial Duplex 
+ * by Tom Igoe. 
+ * 
+ * Sends a byte out the serial port when you type a key
+ * listens for bytes received, and displays their value. 
+ * This is just a quick application for testing serial data
+ * in both directions. 
+ */
+
+
+import processing.serial.*;
+
+Serial myPort;      // The serial port
+int whichKey = -1;  // Variable to hold keystoke values
+int inByte = -1;    // Incoming serial data
+
+void setup() {
+  size(400, 300);
+  // create a font with the third font available to the system:
+  PFont myFont = createFont(PFont.list()[2], 14);
+  textFont(myFont);
+
+  // List all the available serial ports:
+  printArray(Serial.list());
+
+  // I know that the first port in the serial list on my mac
+  // is always my  FTDI adaptor, so I open Serial.list()[0].
+  // In Windows, this usually opens COM1.
+  // Open whatever port is the one you're using.
+  String portName = Serial.list()[0];
+  myPort = new Serial(this, portName, 9600);
+}
+
+void draw() {
+  background(0);
+  text("Last Received: " + inByte, 10, 130);
+  text("Last Sent: " + whichKey, 10, 100);
+}
+
+void serialEvent(Serial myPort) {
+  inByte = myPort.read();
+}
+
+void keyPressed() {
+  // Send the keystroke out:
+  myPort.write(key);
+  whichKey = key;
+}
+