Added Arduino Robot libraries

libraries/Robot_Control/examples/learn/keyboardTest/keyboardTest.ino

@@ -0,0 +1,38 @@
+/*
+ Keyboard Test
+ 
+ Check how the robot's keyboard works. This example
+ sends the data about the key pressed through the
+ serial port.
+
+ All the buttons on the Control Board are tied up to a
+ single analog input pin, in this way it is possible to multiplex a
+ whole series of buttons on one single pin.
+
+ It is possible to recalibrate the thresholds of the buttons using
+ the Robot.keyboardCalibrate() function, that takes a 5 ints long
+ array as parameter
+ 
+ Circuit:
+ * Arduino Robot
+ 
+ created 1 May 2013
+ by X. Yang
+ modified 12 May 2013
+ by D. Cuartielles
+ 
+ This example is in the public domain
+ */
+
+#include <ArduinoRobot.h>
+
+void setup() {
+  // initialize the serial port
+  Serial.begin(9600);
+}
+
+void loop() {
+  // print out the keyboard readings
+  Serial.println(Robot.keyboardRead());
+  delay(100);
+}