X-Git-Url: http://git.piffa.net/web?a=blobdiff_plain;f=programming%2Floops%2Floop_1_array_loop%2Floop_1_array_loop.ino;fp=programming%2Floops%2Floop_1_array_loop%2Floop_1_array_loop.ino;h=42871ef279b1c2192f11272cb45d3e393fc105f2;hb=7eb899c40c1fc5f52e0f9c016e6f638f51fe14ff;hp=0000000000000000000000000000000000000000;hpb=3af536aeadb354f5a63959633f0833b3e53721be;p=sketchbook_andrea

diff --git a/programming/loops/loop_1_array_loop/loop_1_array_loop.ino b/programming/loops/loop_1_array_loop/loop_1_array_loop.ino
new file mode 100644
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+/* Knight Rider 2
+ * --------------
+ *
+ * Reducing the amount of code using for(;;).
+ *
+ *
+ * (cleft) 2005 K3, Malmo University
+ * @author: David Cuartielles
+ * @hardware: David Cuartielles, Aaron Hallborg
+
+
+   Schema semplificato: 
+   - http://lab.piffa.net/schemi/8_led_single_res_bb.png
+   - http://lab.piffa.net/schemi/8_led_single_res_schem.png
+ */
+
+int pinArray[8] = {2, 3, 4, 5, 6, 7, 8, 9};
+int count = 0;
+int timer = 100;
+
+void setup(){
+  // we make all the declarations at once
+  for (count=0;count<9;count++) {
+    pinMode(pinArray[count], OUTPUT);
+  }
+}
+
+void loop() {
+  for (count=0;count<8;count++) { // 8 e' un numero magico
+   digitalWrite(pinArray[count], HIGH);
+   delay(timer);
+   digitalWrite(pinArray[count], LOW);
+   delay(timer);
+  }
+  for (count=8;count>=0;count--) {
+   digitalWrite(pinArray[count], HIGH);
+   delay(timer);
+   digitalWrite(pinArray[count], LOW);
+   delay(timer);
+  }
+}
+
+/* Domande:
+ 
+ 1. Come posso fare per saltare un elemento del loop? 
+ 2. Come posso fare per uscire completamente dal loop? 
+ 3. 8 e' un numero magico: come posso evitarlo?
+
+.
+.
+.
+.
+.
+.
+.
+.
+.
+.
+.
+Soluzioni: 
+ 1. utilizzare continue
+ 2. utilizzare break
+ 3. Utilizzare un variabile sarebbe gia' un inizio, ancora meglio estrarre il
+    valore tramite la funzione sizeof().
+Links: 
+- http://www.tutorialspoint.com/cprogramming/c_continue_statement.htm
+- https://www.arduino.cc/en/Reference/Sizeof
+*/
+
+