array

[sketchbook_andrea] / piezo / piezo_2_keyboard / piezo_2_keyboard.ino

diff --git a/piezo/piezo_2_keyboard/piezo_2_keyboard.ino b/piezo/piezo_2_keyboard/piezo_2_keyboard.ino
index 01afcd844fbfb2bd4dcb3a1658723d3bc9f7ef5f..2df467f61a5c0f6d487eaf5f2126a607a2d53799 100644 (file)
--- a/piezo/piezo_2_keyboard/piezo_2_keyboard.ino
+++ b/piezo/piezo_2_keyboard/piezo_2_keyboard.ino
@@ -1,56 +1,66 @@
+
 /*
- Melody keyboard with Input Pullup Serial
+ Melody keyboard with Input Pullup
  Plays a pitch that changes based on 3 digital inputs
- 
- This example demonstrates the use of pinMode(INPUT_PULLUP). It reads a 
+
+ This example demonstrates the use of pinMode(INPUT_PULLUP). It reads a
  digital input on pin 2 and prints the results to the serial monitor.
- 
+ There's also an extensive use of arrays.
+
  Thecircuit:
  * 3 buttons in pin 2,3,4 with no resistors
  * Piezo on digital pin 9
  * Serial debug is available
- 
+
  This example code is in the public domain
- 
+
  Circuit: http://lab.piffa.net/schemi/piezo_2_keyboard_bb.png
- 
- */
 
+ */
 
-int input[]= {
-  1,2,3};
-int notes[] = {
-  262, 392,880 }; // suona una prima, quinta, ottava in C4
+const int tasti[]= {4,3,2}; // La nota piu' a sx e' quella piu' bassa
+const int notes[] = {262, 392, 880}; // suona una prima, quinta, ottava in C4
+const int piezo_pin = 9;
 
 // Carica un file di esempio con tutte le note
 // #include "pitches.h";
 // int notes[] = {NOTE_C4, NOTE_G4,NOTE_C5 }; // suona una prima, quinta, ottava
 
-void setup(){
-  //start serial connection
-  Serial.begin(9600);
-  //configure pin2/3/4 as an input and enable the internal pull-up resistor
-  pinMode(2, INPUT_PULLUP);
-  pinMode(3, INPUT_PULLUP);
-  pinMode(4, INPUT_PULLUP);
-  pinMode(9, OUTPUT); 
+void setup() {
+    //start serial connection
+    Serial.begin(9600);
+    Serial.println("Welcome");
+    //configure pin2/3/4 as an input and enable the internal pull-up resistor
+    pinMode(tasti[0], INPUT_PULLUP);
+    pinMode(tasti[1], INPUT_PULLUP);
+    pinMode(tasti[2], INPUT_PULLUP);    // Provare ad impostare i PIN con un
+                                        // ciclo for
+    pinMode(9, OUTPUT);
 }
 
-void loop(){
-  for (int thisSensor = 2; thisSensor < 5; thisSensor++) {
-    int sensorReading = digitalRead(thisSensor);
-    if (sensorReading == LOW) {
-      Serial.println(thisSensor);
-      tone(9, notes[thisSensor -2], 50); // Notes array is translated
+void loop() {
+    for (int thisSensor = 0; thisSensor < 3; thisSensor++) {
+        int sensorReading = digitalRead(tasti[thisSensor]);
+        if (sensorReading == LOW) {
+            Serial.print("Sensore: ");
+            Serial.print(thisSensor);
+            tone(piezo_pin, notes[thisSensor ], 50); // Notes array is translated
+            Serial.print("\t Nota: ");
+            Serial.println(notes[thisSensor]);
+        }
+        //delay(2); // eventuale delay
     }
-    //delay(2); // eventuale delay
-  }
 }
 /* Domande
  1. Modificare le note suonate utilizzando come riferimento il file pitches.h:
- suonare una prima, terza, quinta (C-E-G)
- 2. Includere il file pitches.h . Come si potrebbe scrivere una melodia da far suonare
- autnomamente ad Arduino?
+    suonare una prima, terza, quinta (C-E-G)
+ 2. Includere il file pitches.h . Come si potrebbe scrivere una melodia da far s    uonare autnomamente ad Arduino?
  */
 
 
+
+
+
+
+
+