add arduino-0018-linux (32 bit)

arduino-0018-linux/examples/Control/Arrays/Arrays.pde

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+/*
+  Arrays
+ 
+ Demonstrates the use of  an array to hold pin numbers
+ in order to iterate over the pins in a sequence. 
+ Lights multiple LEDs in sequence, then in reverse.
+ 
+ Unlike the For Loop tutorial, where the pins have to be
+ contiguous, here the pins can be in any random order.
+ 
+ The circuit:
+ * LEDs from pins 2 through 7 to ground
+ 
+ created 2006
+ by David A. Mellis
+ modified 5 Jul 2009
+ by Tom Igoe 
+ 
+ http://www.arduino.cc/en/Tutorial/Array
+ */
+
+int timer = 100;           // The higher the number, the slower the timing.
+int ledPins[] = { 
+  2, 7, 4, 6, 5, 3 };       // an array of pin numbers to which LEDs are attached
+int pinCount = 6;           // the number of pins (i.e. the length of the array)
+
+void setup() {
+  int thisPin;
+  // the array elements are numbered from 0 to (pinCount - 1).
+  // use a for loop to initialize each pin as an output:
+  for (int thisPin = 0; thisPin < pinCount; thisPin++)  {
+    pinMode(ledPins[thisPin], OUTPUT);      
+  }
+}
+
+void loop() {
+  // loop from the lowest pin to the highest:
+  for (int thisPin = 0; thisPin < pinCount; thisPin++) { 
+    // turn the pin on:
+    digitalWrite(ledPins[thisPin], HIGH);   
+    delay(timer);                  
+    // turn the pin off:
+    digitalWrite(ledPins[thisPin], LOW);    
+
+  }
+
+  // loop from the highest pin to the lowest:
+  for (int thisPin = pinCount - 1; thisPin >= 0; thisPin--) { 
+    // turn the pin on:
+    digitalWrite(ledPins[thisPin], HIGH);
+    delay(timer);
+    // turn the pin off:
+    digitalWrite(ledPins[thisPin], LOW);
+  }
+}