From: Andrea Manni <andrea@piffa.net>
Date: Thu, 7 May 2015 16:16:31 +0000 (+0200)
Subject: servo
X-Git-Url: http://git.piffa.net/web?a=commitdiff_plain;h=54a478908b8865add69e24463a1c87aee2184b6c;p=sketchbook_andrea

servo
---

diff --git a/interrupts/input_interrupt_0/input_interrupt_0.ino b/interrupts/input_interrupt_0/input_interrupt_0.ino
new file mode 100644
index 0000000..80d1d17
--- /dev/null
+++ b/interrupts/input_interrupt_0/input_interrupt_0.ino
@@ -0,0 +1,31 @@
+/*
+  Interrupts : input
+  
+  Utilizzare un interrupt per intercettare
+  l'input di un interruttore momentaneo
+  
+  */
+  
+int ledPin = 13;
+volatile int state = LOW;
+
+void setup()
+{
+  pinMode(ledPin, OUTPUT);
+  pinMode(2, INPUT_PULLUP);
+  attachInterrupt(0, blink, FALLING);
+}
+
+void loop()
+{
+  //digitalWrite(ledPin, state);
+  delay(10000); // Mette in pausa Arduino per 10sec
+}
+
+// Funzioni
+void blink()
+// Modifica dello stato del LED
+{
+  state = !state;
+  digitalWrite(ledPin, state);
+}
diff --git a/motors/servo/Knob_2/Knob_2.ino b/motors/servo/Knob_2/Knob_2.ino
new file mode 100644
index 0000000..886e107
--- /dev/null
+++ b/motors/servo/Knob_2/Knob_2.ino
@@ -0,0 +1,22 @@
+// Controlling a servo position using a potentiometer (variable resistor) 
+// by Michal Rinott <http://people.interaction-ivrea.it/m.rinott> 
+
+#include <Servo.h> 
+ 
+Servo myservo;  // create servo object to control a servo 
+ 
+int potpin = 0;  // analog pin used to connect the potentiometer
+int val;    // variable to read the value from the analog pin 
+ 
+void setup() 
+{ 
+  myservo.attach(9);  // attaches the servo on pin 9 to the servo object 
+} 
+ 
+void loop() 
+{ 
+  val = analogRead(potpin);            // reads the value of the potentiometer (value between 0 and 1023) 
+  val = map(val, 0, 1023, 0, 179);     // scale it to use it with the servo (value between 0 and 180) 
+  myservo.write(val);                  // sets the servo position according to the scaled value 
+  delay(15);                           // waits for the servo to get there 
+} 
diff --git a/motors/servo/Sweep_1/Sweep_1.ino b/motors/servo/Sweep_1/Sweep_1.ino
new file mode 100644
index 0000000..fb326e7
--- /dev/null
+++ b/motors/servo/Sweep_1/Sweep_1.ino
@@ -0,0 +1,31 @@
+// Sweep
+// by BARRAGAN <http://barraganstudio.com> 
+// This example code is in the public domain.
+
+
+#include <Servo.h> 
+ 
+Servo myservo;  // create servo object to control a servo 
+                // a maximum of eight servo objects can be created 
+ 
+int pos = 0;    // variable to store the servo position 
+ 
+void setup() 
+{ 
+  myservo.attach(9);  // attaches the servo on pin 9 to the servo object 
+} 
+ 
+ 
+void loop() 
+{ 
+  for(pos = 0; pos < 180; pos += 1)  // goes from 0 degrees to 180 degrees 
+  {                                  // in steps of 1 degree 
+    myservo.write(pos);              // tell servo to go to position in variable 'pos' 
+    delay(15);                       // waits 15ms for the servo to reach the position 
+  } 
+  for(pos = 180; pos>=1; pos-=1)     // goes from 180 degrees to 0 degrees 
+  {                                
+    myservo.write(pos);              // tell servo to go to position in variable 'pos' 
+    delay(15);                       // waits 15ms for the servo to reach the position 
+  } 
+} 
diff --git a/multitasking/BlinkWithoutDelay_6_1_interrupt/BlinkWithoutDelay_6_1_interrupt.ino b/multitasking/BlinkWithoutDelay_6_1_interrupt/BlinkWithoutDelay_6_1_interrupt.ino
new file mode 100644
index 0000000..6018195
--- /dev/null
+++ b/multitasking/BlinkWithoutDelay_6_1_interrupt/BlinkWithoutDelay_6_1_interrupt.ino
@@ -0,0 +1,70 @@
+/* Blink without Delay
+
+ Utilizzo di un interrupt per richiamare update()
+ una volta ogni millesimo di secondo
+ */
+
+// Oggetti:
+class Lampeggiatore {
+  // Lampeggia un LED utilizzando millis()
+  // Variabili
+  int ledPin ;           // il numero del LED pin
+  int ledState ;         // stato attuale del LED
+  long interval ;        // milliseconds di intervallo nel lampeggiare
+  long previousMillis ;  //precedente cambio di stato
+
+  // Constructor: come viene instanziato un oggetto facente parte della classe
+public:
+  Lampeggiatore(int pin, long time)
+  {
+    ledPin = pin;
+    pinMode(ledPin, OUTPUT);
+    ledState = LOW;
+    previousMillis = 0;
+    interval = time;
+  }
+
+// Una funzione facente parte di una classe prende il nome di "metodo" della stessa:
+  void Update () {
+    // Illumina il ledB secondo un intervallo passato come argomento
+
+    if(millis() - previousMillis > interval) {
+      // save the last time you blinked the LED 
+      previousMillis = millis();   
+
+      // if the LED is off turn it on and vice-versa:
+      ledState = !ledState ; // Inverti il LED
+    }
+    // set the LED with the ledState of the variable:
+    digitalWrite(ledPin, ledState);
+  }
+  
+};
+
+// Instanziamo i due led dalla classe 
+Lampeggiatore ledA(13, 1000);
+Lampeggiatore ledB(12, 500);
+
+void setup() {
+  // Interrupt ogni millesimo di secondo
+  // Timer0 is already used for millis() - we'll just interrupt somewhere
+  // in the middle and call the "Compare A" function below
+  OCR0A = 0xAF;
+  TIMSK0 |= _BV(OCIE0A);
+}
+// A ogni millisecondo l'interrupt attiva questa funzione
+SIGNAL(TIMER0_COMPA_vect) 
+{ 
+  ledA.Update();
+  ledB.Update();
+} 
+void loop()
+{
+  // Gli aggiornamenti dei LED ora vengono richiamati dalla funzione
+  // associata agli interrupt
+//  ledA.Update();
+//  ledB.Update();
+}
+
+
+