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[sketchbook_andrea] / advanced_projects / led_PWM_logical_analyzer_demo / led_PWM_logical_analyzer_demo.ino

diff --git a/advanced_projects/led_PWM_logical_analyzer_demo/led_PWM_logical_analyzer_demo.ino b/advanced_projects/led_PWM_logical_analyzer_demo/led_PWM_logical_analyzer_demo.ino
index 5524160d83c3e8c771db19a10b5359df69132d44..5416e9cf024de8e337a22a419383687dc4ae6021 100644 (file)
--- a/advanced_projects/led_PWM_logical_analyzer_demo/led_PWM_logical_analyzer_demo.ino
+++ b/advanced_projects/led_PWM_logical_analyzer_demo/led_PWM_logical_analyzer_demo.ino
@@ -1,46 +1,47 @@
 /*
     PWM demo with a logical analyzer
  
- Connect pin ~11 to a logic analyzer and a multimeter
+ Connect pin ~9 to a logic analyzer and a multimeter
  and witness the power of the built-in PWM generator.
  
+ Usage: change pausa from 3000 (demostration) to 20 for sampling.
  BTW: Logic comes from: http://downloads.saleae.com/betas/1.1.34/Logic+1.1.34+(64-bit).zip
  */
 
-int led = 11;
-int c = 0;
+int led = 9;
+int pausa = 3000; // 3000 for demo or 20 when sampling
 
 
 void setup()
 {
   pinMode(led, OUTPUT);
-  delay(5000);
-
+  delay(3000);
 }
 
 void loop()
 {  
   // Static test value, comment exit() or ad a delay()
-  //analogWrite(led, 0) ; // No light
-  //delay(20)
-  //analogWrite(led, 254) ;  // Full light
-  //delay(20)
-  //analogWrite(led, 63) ;   // 1/4
-  //delay(20)
-  //analogWrite(led, 127) ;  // 1/2
-  //delay(20)
-  //analogWrite(led, 191) ;  // 3/4
-  //delay(20)
-  //return ;
-  
-  for ( c = 0; c < 255 ; c++) {
+  analogWrite(led, 1) ; // No light, just a bit
+  delay(pausa);
+  analogWrite(led, 63) ;   // 1/4
+  delay(pausa);
+  analogWrite(led, 127) ;  // 1/2
+  delay(pausa);
+  analogWrite(led, 191) ;  // 3/4
+  delay(pausa);
+  analogWrite(led, 254) ;  // Full light
+  delay(pausa);
+  // return ;
+
+  for (int c = 0; c < 255 ; c++) {
     analogWrite(led, c) ;
     delay(2 );
   }
-  exit(0);
+  //exit(0);
 
 }
 
 
 
 
+