analog cleanup

[sketchbook_andrea] / basic / analog_input / photo_6_smooth / photo_6_smooth.ino

diff --git a/basic/analog_input/photo_6_smooth/photo_6_smooth.ino b/basic/analog_input/photo_6_smooth/photo_6_smooth.ino
index 9d1aa9c658d506e342361c16c54c4c9ca41a16f7..60913fe2414f3bdb931ce91f6a603f3de62ac5cf 100644 (file)
--- a/basic/analog_input/photo_6_smooth/photo_6_smooth.ino
+++ b/basic/analog_input/photo_6_smooth/photo_6_smooth.ino
@@ -2,13 +2,16 @@
   Smoothing
  
  Legge 10 valori dal sensore e ritorna il valore medio tra questi.
+
+ Schema: https://learn.adafruit.com/assets/460
+
  
  
  */
 
 // These constants won't change:
 const int sensorPin = A0;    // pin that the sensor is attached to
-const int ledPin = 9;        // pin that the LED is attached to
+const int ledPin = 11;        // pin that the LED is attached to
 
 // variables:
 int sensorValue = 0;         // the sensor value
@@ -19,6 +22,7 @@ int sensorMax = 0;           // maximum sensor value
 void setup() {
   // turn on LED to signal the start of the calibration period:
   pinMode(13, OUTPUT);
+  pinMode(ledPin, OUTPUT);
   digitalWrite(13, HIGH);
 
   // calibrate during the first five seconds 
@@ -62,7 +66,7 @@ int smoothRead(int sensorPin) {
     total = total + analogRead(sensorPin);
     delay(2); // Pausa per assestare il senstore
   }
-  return(total / 10);
+  return(total / 10); // Valore medio
 }