X-Git-Url: http://git.piffa.net/web?a=blobdiff_plain;f=multitasking%2FBlinkWithoutDelay_3_funzione%2FBlinkWithoutDelay_3_funzione.ino;h=93387bd7d4d174efdad86c442670b01dc1f028bd;hb=17b4fe57f20ce15396a69ef7fdc87a7342ba0cb7;hp=5f5f2aba16ffdc510edffb190419135ae3f2704e;hpb=f3ffb63f53d580f0853e6b32c8ec377a7eac67f7;p=sketchbook_andrea

diff --git a/multitasking/BlinkWithoutDelay_3_funzione/BlinkWithoutDelay_3_funzione.ino b/multitasking/BlinkWithoutDelay_3_funzione/BlinkWithoutDelay_3_funzione.ino
index 5f5f2ab..93387bd 100644
--- a/multitasking/BlinkWithoutDelay_3_funzione/BlinkWithoutDelay_3_funzione.ino
+++ b/multitasking/BlinkWithoutDelay_3_funzione/BlinkWithoutDelay_3_funzione.ino
@@ -12,20 +12,23 @@
 
 /////////////
 // First LED
-int ledA =  13;      // the number of the LED pin
+const int ledA =  13;      // the number of the LED pin
 // Variables will change:
 int ledStateA = LOW;             // ledState used to set the LED
 long previousMillisA = 0;        // will store last time LED was updated
 // the follow variables is a long because the time, measured in miliseconds,
 // will quickly become a bigger number than can be stored in an int.
 long intervalA = 1000;           // interval at which to blink (milliseconds)
+void lightLedA () ;
 
 //////////////
-// Second LED
-int ledB = 12; //Secondo LED
-int ledStateB = LOW;             // ledState used to set the LED
+//  Second LED
+// Now with less global variables thanks to static (see function body)
+const int ledB = 12; //Secondo LED
+           // ledState used to set the LED
 long previousMillisB = 0;        // will store last time LED was updated
-long intervalB = 500;           // interval at which to blink (milliseconds)
+           // interval at which to blink (milliseconds)
+void lightLedB () ;
 
 
 void setup() {
@@ -60,6 +63,8 @@ void lightLedA () {
 }
 
 void lightLedB () {
+  long intervalB = 500;
+   static int ledStateB ;  // https://www.arduino.cc/en/Reference/Static
   if(millis() - previousMillisB > intervalB) {
     // save the last time you blinked the LED 
     previousMillisB = millis();