Added Arduino Robot libraries

libraries/Robot_Control/examples/learn/IRArray/IRArray.ino

@@ -0,0 +1,44 @@
+/*
+ IR array
+ 
+ Read the analog value of the IR sensors at the 
+ bottom of the robot. The also-called line following 
+ sensors are a series of pairs of IR sender/receiver
+ used to detect how dark it is underneath the robot.
+
+ The information coming from the sensor array is stored
+ into the Robot.IRarray[] and updated using the Robot.updateIR()
+ method.
+ 
+ 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 robot
+  Robot.begin();
+
+  // initialize the serial port
+  Serial.begin(9600);
+}
+
+void loop(){
+  // store the sensor information into the array 
+  Robot.updateIR();
+
+  // iterate the array and print the data to the Serial port
+  for(int i=0; i<5; i++){
+    Serial.print(Robot.IRarray[i]);
+    Serial.print(" ");
+  }
+  Serial.println("");
+}