From: eaman <andrea@piffa.net>
Date: Wed, 7 Dec 2016 23:35:45 +0000 (+0100)
Subject: Calibrazioni
X-Git-Url: http://git.piffa.net/web?p=sketchbook_andrea;a=commitdiff_plain;h=6dc7b8f2ea8b8f73f4f98571028291d7469ef3ab

Calibrazioni
---

diff --git a/basic/analog_input/photo_4_calibrated/photo_4_calibrated.ino b/basic/analog_input/photo_4_calibrated/photo_4_calibrated.ino
index 3701f07..313598d 100644
--- a/basic/analog_input/photo_4_calibrated/photo_4_calibrated.ino
+++ b/basic/analog_input/photo_4_calibrated/photo_4_calibrated.ino
@@ -32,21 +32,21 @@ void setup() {
 void loop() {
   // read the value from the sensor:
   sensorValue = analogRead(sensorPin);   
-  int calValue = map(sensorValue,min,max,0,1024) ; 
-  // Max pausa = 1024 
+  int calValue = map(sensorValue,min,max,0,1000) ; 
+  // Max pausa = 1sec
       // turn the ledPin on
     digitalWrite(ledPin, HIGH);  
   // stop the program for <sensorValue> milliseconds:
   delay(calValue);          
   // turn the ledPin off:        
   digitalWrite(ledPin, LOW);   
-  // stop the program for for <sensorValue> milliseconds:
-  // print the results to the serial monitor:
+  // Debug, per disabilitarlo togliere l'inizializzazione della seriale
+  // dal setup()
   Serial.print("sensor = " );                       
   Serial.print(sensorValue);      
   Serial.print("\t cal delay = ");      
   Serial.println(calValue);
-  delay(sensorValue);                  
+  delay(calValue);                  
 }
 
 /*
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 9d1aa9c..1aaa668 100644
--- a/basic/analog_input/photo_6_smooth/photo_6_smooth.ino
+++ b/basic/analog_input/photo_6_smooth/photo_6_smooth.ino
@@ -62,7 +62,7 @@ int smoothRead(int sensorPin) {
     total = total + analogRead(sensorPin);
     delay(2); // Pausa per assestare il senstore
   }
-  return(total / 10);
+  return(total / 10); // Valore medio
 }
 
 
diff --git a/basic/analog_input/photo_7_tonePitchFollower/photo_7_tonePitchFollower.ino b/basic/analog_input/photo_7_tonePitchFollower/photo_7_tonePitchFollower.ino
index dcfc5b7..5b08cae 100644
--- a/basic/analog_input/photo_7_tonePitchFollower/photo_7_tonePitchFollower.ino
+++ b/basic/analog_input/photo_7_tonePitchFollower/photo_7_tonePitchFollower.ino
@@ -12,6 +12,8 @@
  modified 31 May 2012
  by Tom Igoe, with suggestion from Michael Flynn
 
+ Modified by A.Manni
+
 This example code is in the public domain.
  
  http://arduino.cc/en/Tutorial/Tone2
@@ -20,17 +22,19 @@ This example code is in the public domain.
 
 // 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 piezoPin  = 9;     // pin that the piezo is attached to
 
 // variables:
 int sensorValue = 0;         // the sensor value
-int sensorMin = 1023;        // minimum sensor value
-int sensorMax = 0;           // maximum sensor value
+int sensorMin   = 1023;      // minimum sensor value
+int sensorMax   = 0;         // maximum sensor value
+int pitch       = 0;         // pithc value for the piezo
 
 void setup() {
   // initialize serial communications (for debugging only):
   Serial.begin(9600);
     pinMode(13, OUTPUT);
+    pinMode(piezoPin, OUTPUT);
   digitalWrite(13, HIGH);
 
   // calibrate during the first five seconds 
@@ -54,24 +58,28 @@ void setup() {
 
 void loop() {
   // read the sensor:
-  int sensorReading = analogRead(sensorPin);
+  int sensorValue = analogRead(sensorPin);
   // print the sensor reading so you know its range
-  Serial.println(sensorReading);
-  // map the analog input range (in this case, 400 - 1000 from the photoresistor)
+  Serial.println(sensorValue);
+  // map the analog input range 
   // to the output pitch range (120 - 1500Hz)
   // change the minimum and maximum input numbers below
   // depending on the range your sensor's giving:
-  int thisPitch = map(sensorReading, sensorMin, sensorMax, 220, 3500);
+  pitch = map(sensorValue, sensorMin, sensorMax, 220, 3500);
 
   // play the pitch:
-  if (sensorReading < sensorMax -50) {
-  tone(ledPin, thisPitch, 10);
+  if (sensorValue < sensorMax -50) { // Offset to prevent the piezo to ring
+                                     // all the time, check sensor polarity
+  tone(piezoPin, pitch, 10);
   }
   delay(1);        // delay in between reads for stability
 }
 
 
 
+/* Esercizi:
+ 1. Implementare constrain e smoothing in questo sketch
 
+ */
 
 
diff --git a/libraries/common/common.cpp b/libraries/common/common.cpp
index 2de42e9..b2564e7 100644
--- a/libraries/common/common.cpp
+++ b/libraries/common/common.cpp
@@ -155,6 +155,7 @@ void Pwm::Up(long speed) {
     if ((millis() - previousMillis) > speed / 256) {
         brightness++; // Incrementiamo la luminosita'
         previousMillis = millis();
+        Serial.println(brightness);
     };
 }
 
@@ -169,6 +170,7 @@ void Pwm::Down(long speed ) {
     if ((millis() - previousMillis) > speed / 256) {
         brightness--; // Incrementiamo la luminosita'
         previousMillis = millis();
+        Serial.println(brightness);
     };
 }
 
@@ -177,11 +179,12 @@ void Pwm::UD(long speed ) {
     if ((millis() - previousMillis) > speed / 512) {
         brightness = brightness + increment; // Incrementiamo la luminosita'
         previousMillis = millis();
+        Serial.println(brightness);
+        analogWrite(ledPin, brightness);
         if (brightness == 0 || brightness == 255) { // Reverse direction
             increment = -increment ;
         };
     };
-    analogWrite(ledPin, brightness);
 }
 
 
diff --git a/libraries/common/common.h b/libraries/common/common.h
index c1cfc39..9e721b8 100644
--- a/libraries/common/common.h
+++ b/libraries/common/common.h
@@ -64,7 +64,6 @@ class Pwm {
     // Variabili
     int ledPin ;           // il numero del LED pin
     int speed ;            // velocita' del ciclo in ms
-    byte brightness  ;      // luminostia' iniziale
     long previousMillis ;  //precedente cambio di stato
     byte increment ;        // aumenta brighteness nel loop UD
 
@@ -74,6 +73,7 @@ public:
     void Up(long speed);
     void Down(long speed);
     void UD(long speed);
+    byte brightness  ;      // luminostia' iniziale
 };
 
 //////////////////////
diff --git a/oggi/analogInput_1/analogInput_1.ino b/oggi/analogInput_1/analogInput_1.ino
deleted file mode 100644
index 231a9ab..0000000
--- a/oggi/analogInput_1/analogInput_1.ino
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
-  Analog Input
- Demonstrates analog input by reading an analog sensor on analog pin 0 and
- turning on and off a light emitting diode(LED)  connected to digital pin 13. 
- The amount of time the LED will be on and off depends on
- the value obtained by analogRead(). 
- 
- The circuit:
- * Potentiometer attached to analog input 0
- * center pin of the potentiometer to the analog pin
- * one side pin (either one) to ground
- * the other side pin to +5V
- * LED anode (long leg) attached to digital output 13
- * LED cathode (short leg) attached to ground
- 
- * Note: because most Arduinos have a built-in LED attached 
- to pin 13 on the board, the LED is optional.
- 
- 
- Created by David Cuartielles
- modified 30 Aug 2011
- By Tom Igoe
- 
- This example code is in the public domain.
- 
- http://arduino.cc/en/Tutorial/AnalogInput
- 
- Schema: http://lab.piffa.net/schemi/potenziometro_bb.png
- 
- */
-
-const int sensorPin = A0;    // select the input pin for the potentiometer
-const int ledPin = 13;      // select the pin for the LED
-int sensorValue = 0;  // variable to store the value coming from the sensor
-
-void setup() {
-  // declare the ledPin as an OUTPUT:
-  pinMode(ledPin, OUTPUT);  
-  // Non e' necessario dichiarare un pin come input: 
-  // tutti i pin di default sono input
-}
-
-void loop() {
-  // read the value from the sensor:
-  sensorValue = analogRead(sensorPin);    
-  // turn the ledPin on
-  digitalWrite(ledPin, HIGH);  
-  // stop the program for <sensorValue> milliseconds:
-  delay(sensorValue);          
-  // turn the ledPin off:        
-  digitalWrite(ledPin, LOW);   
-  // stop the program for for <sensorValue> milliseconds:
-  delay(sensorValue);                  
-}
diff --git a/oggi/analogInput_2_serial/analogInput_2_serial.ino b/oggi/analogInput_2_serial/analogInput_2_serial.ino
deleted file mode 100644
index fa03276..0000000
--- a/oggi/analogInput_2_serial/analogInput_2_serial.ino
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
-  Analog Input
- Demonstrates analog input by reading an analog sensor on analog pin 0 and
- turning on and off a light emitting diode(LED)  connected to digital pin 13. 
- The amount of time the LED will be on and off depends on
- the value obtained by analogRead(). 
- 
- The circuit:
- * Potentiometer attached to analog input 0
- * center pin of the potentiometer to the analog pin
- * one side pin (either one) to ground
- * the other side pin to +5V
- * LED anode (long leg) attached to digital output 13
- * LED cathode (short leg) attached to ground
- 
- * Note: because most Arduinos have a built-in LED attached 
- to pin 13 on the board, the LED is optional.
- 
- 
- Created by David Cuartielles
- modified 30 Aug 2011
- By Tom Igoe
- 
- This example code is in the public domain.
- 
- http://arduino.cc/en/Tutorial/AnalogInput
- 
- */
-
-const int sensorPin = A0;    // select the input pin for the potentiometer
-const int ledPin = 13;      // select the pin for the LED
-int sensorValue = 0;  // variable to store the value coming from the sensor
-
-void setup() {
-  // declare the ledPin as an OUTPUT:
-  pinMode(ledPin, OUTPUT);  
-    // initialize serial communications at 9600 bps:
-  Serial.begin(9600); 
-}
-
-void loop() {
-  // read the value from the sensor:
-  sensorValue = analogRead(sensorPin);    
-  // turn the ledPin on
-  digitalWrite(ledPin, HIGH);  
-  // stop the program for <sensorValue> milliseconds:
-  delay(sensorValue);          
-  // turn the ledPin off:        
-  digitalWrite(ledPin, LOW);   
-  // stop the program for for <sensorValue> milliseconds:
-    // print the results to the serial monitor:
-  Serial.print("sensor = " );                       
-  Serial.print(sensorValue);      
-  Serial.print("\t delay = ");      
-  Serial.println(sensorValue);
-  delay(sensorValue);                  
-}
diff --git a/oggi/operator_2_comparison/operator_2_comparison.ino b/oggi/operator_2_comparison/operator_2_comparison.ino
deleted file mode 100644
index 7900d9e..0000000
--- a/oggi/operator_2_comparison/operator_2_comparison.ino
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
-  Operatori comparativi binari
-  Comparison operators, binary
- 
- */
-
-int a = 5;
-int b = 10;
-int c = 20;
-
-void setup()                    // run once, when the sketch starts
-{
-  Serial.begin(9600);           // set up Serial library at 9600 bps
-
-  Serial.println("Here is some math: ");
-
-  Serial.print("a = ");
-  Serial.println(a);
-  Serial.print("b = ");
-  Serial.println(b);
-  Serial.print("c = ");
-  Serial.println(c);
-
-  Serial.print("a > b = ");       // maggiore
-  Serial.println(a > b);
-
-  Serial.print("a < b = ");       // minore
-  Serial.println(a < b);
-
-  Serial.print("a == b -> ");       // stesso valore
-  Serial.println(a == b);
-
-  Serial.print("a != b -> ");       // valore diverso
-  Serial.println(a != b);
-
-  Serial.print("a <= b ->");       // minore uguale
-  Serial.println(a <= b);
-
-  Serial.print("a >= b -> ");       // maggiore uguale
-  Serial.println(a >= b);
-}
-
-void loop()                     // we need this to be here even though its empty
-{
-}
-
-
diff --git a/oggi/pwm_0_stati/pwm_0_stati.ino b/oggi/pwm_0_stati/pwm_0_stati.ino
deleted file mode 100644
index 3863c4a..0000000
--- a/oggi/pwm_0_stati/pwm_0_stati.ino
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
-   PWM Stati
- 
-   PWM per un LED: impostare i valori di luminosita' di un LED.
-   4 stati di luminosita' per un LED collegato a un PIN PWM
-   
- */
-
-const int led  = 9   ;     // Il pin ~9 e' abilitato al PWM
-byte brightness = 255;  // Valore iniziale per il PWM del LED
-const int pausa = 2000; // Pausa tra uno stato e l'altro
-
-void setup()  { 
-  pinMode(led, OUTPUT); // Il PIN nove va dichiarato come un OUTPUT
-} 
-
-void loop()  { 
-  // OUTPUT al 100% : 255
-  analogWrite(led, brightness) ; 
-  delay(pausa);
-
-  // OUTPUT al 75% : 191
-  analogWrite(led, brightness * 0.75) ; 
-  delay(pausa);
-  
-  // OUTPUT al 50% : 127
-  analogWrite(led, brightness * 0.5) ; 
-  delay(pausa);
-  
-  // OUTPUT al 25%: 63
-  analogWrite(led, brightness * 0.25 ) ; 
-  delay(pausa);
-
-  // OUTPUT al 0%
-  analogWrite(led, brightness * 0) ;
-  delay(pausa);
-}
diff --git a/oggi/pwm_1_soluzione_doppio_while_byte/pwm_1_soluzione_doppio_while_byte.ino b/oggi/pwm_1_soluzione_doppio_while_byte/pwm_1_soluzione_doppio_while_byte.ino
deleted file mode 100644
index 19f8d07..0000000
--- a/oggi/pwm_1_soluzione_doppio_while_byte/pwm_1_soluzione_doppio_while_byte.ino
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
-   Fade sali e scendi
- 
-   PWM per un LED: aumentare progressivamente la luminosita'.
-   Aumenta e diminuisce la luminostia' usando un ciclo while
-
-   Schema: http://lab.piffa.net/schemi/led_single_bb.png
-   Usare un PIN abilitato per il PWM.
- */
-
-byte led  = 9   ;     // Il pin ~9 e' abilitato al PWM
-byte brightness = 0;  // Valore iniziale per il PWM del LED
-
-// the setup routine runs once when you press reset:
-void setup()  { 
-  pinMode(led, OUTPUT); // Il PIN nove va dichiarato come un OUTPUT
-} 
-
-void loop()  { 
-    while (brightness < 255) {
-  analogWrite(led, brightness);// La funziona analogWrite utilizza il PWM
-  // a 8 bit integrato nel MCU: simula un serie di valori intermedi
-  // nell'intervallo discreto con minimo 0 (spento) e  massimo 255 (acceso).         
-  delay(10);       
-  brightness = brightness + 1; // Incrementiamo la luminosita'
-    }
-
-    while (brightness > 0) {
-  analogWrite(led, brightness);// La funziona analogWrite utilizza il PWM
-  delay(10);       
-  brightness = brightness - 1; // Decrementiamo la luminosita'
-    }
-
-
-}
-/* Note:
-
-- basic/pwm/pwm_3_fade_reverser/pwm_3_fade_reverser.ino
-
-  E molto piu' snello utilizzando il solo ciclo loop come iteratore
-  e una condizione per cambiare l'incremento.
-*/
diff --git a/oggi/pwm_1_while_byte/pwm_1_while_byte.ino b/oggi/pwm_1_while_byte/pwm_1_while_byte.ino
deleted file mode 100644
index dc09234..0000000
--- a/oggi/pwm_1_while_byte/pwm_1_while_byte.ino
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
-   Fade
- 
-   PWM per un LED: aumentare progressivamente la luminosita'
-   utilizzando un ciclo while e l'overflow di un byte.
-
-    Schema: http://lab.piffa.net/schemi/led_single_bb.png
-    (Cambiare PIN)
- */
-
-const byte led  = 9   ; // Il pin ~9 e' abilitato al PWM
-byte brightness = 0;    // Valore iniziale per il PWM del LED
-                        // Perche' brightness non e' una costante?
-
-// the setup routine runs once when you press reset:
-void setup()  { 
-  pinMode(led, OUTPUT); // Il PIN nove va dichiarato come un OUTPUT
-} 
-
-void loop()  { 
-  analogWrite(led, brightness);  // La funziona analogWrite utilizza il PWM
-  // a 8 bit integrato nel MCU: simula un serie di valori intermedi
-  // nell'intervallo discreto con minimo 0 (spento) e  massimo 255 (acceso).         
-  delay(10);       
-  brightness = brightness + 1; // Incrementiamo la luminosita'
-}
-
-/* Domande:
-
-1. Come fare a invertire la dissolvenza diminuendo la luminosita'?
-2. Provare a far salire e poi scendere la luminosita'
-
-*/
diff --git a/oggi/pwm_2_for_loop/pwm_2_for_loop.ino b/oggi/pwm_2_for_loop/pwm_2_for_loop.ino
deleted file mode 100644
index 610d302..0000000
--- a/oggi/pwm_2_for_loop/pwm_2_for_loop.ino
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
-    LED for PWM
- 
- PWM per un LED: aumentare progressivamente la luminosita'.
- Utilizzo di un ciclo iterativo: for loop
- 
- */
-
-int led     = 9; // Pin per il PWM
-int pausa   = 5; 
-
-void setup()
-{
-  pinMode(led, OUTPUT);
-}
-
-void loop()
-{
-  for (int i = 0; i < 255 ; i++) { // Operatore ternario, 3 argomenti:
-  /* 1. definizione iteratore
-     2. limite iteratore
-     3. incremento operatore
-     */
-    analogWrite(led, i) ;
-    delay(pausa);
-  }
-  // Ora l'inverso
-  for (int c = 255; c > 0 ; c--) {  // Domanda: 1. avrei potuto usare come 
-                                    // variabile di nuovo i ?
-    analogWrite(led, c) ;
-    delay(pausa);
-  }
-}
-
-/* Domande:
- 2. I due loop sembrano molto simili: e' possibile accorparli?
-
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- .
- - Risposte:
- 1. Si, le variabili i e c esistono solo nello scopo degli iteratori
-    in cui sono dichiarate.
- 2. Vedi es. suciessivo.
- */
-
-
-
-
diff --git a/oggi/pwm_4_analog_input/pwm_4_analog_input.ino b/oggi/pwm_4_analog_input/pwm_4_analog_input.ino
deleted file mode 100644
index 5e9f83d..0000000
--- a/oggi/pwm_4_analog_input/pwm_4_analog_input.ino
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
-  Analog PWM
-  
-  Impostare la frequenza del PWM tramite un input analogico.
-
-- Schema: http://lab.piffa.net/schemi/arduino-pwm-diagram.png
-  
-  */
-  
-int inputPin = A0;  // set input pin for the potentiometer
-int inputValue = 0; // potentiometer input variable
-int ledPin = 3;     // output pin, deve avere il PWM
-
-void setup() {
-     // declare the ledPin as an OUTPUT:
-     pinMode(ledPin, OUTPUT);
-}
-
-void loop() {
-     // read the value from the potentiometer:
-     inputValue = analogRead(inputPin);
-
-     // send the square wave signal to the LED:
-     analogWrite(ledPin, inputValue/4); 
-     // la lettura analogica e' a 10 bit (0-1024)
-     // Il PWM invece e' a 8 bit (0-255)
-     // Circa 1024 / 4 ~= 255
-     
-     // Domanda: dovrebbe esserci un delay()?
-}
-