rgb

diff --git a/RGB_LED/rgb_0/rgb_0.ino b/RGB_LED/rgb_0/rgb_0.ino
new file mode 100644 (file)
index 0000000..ea32ca6
--- /dev/null
+++ b/RGB_LED/rgb_0/rgb_0.ino
@@ -0,0 +1,42 @@
+/*
+    Adafruit Arduino - Lesson 3. RGB LED
+ 
+ RGB LED: mpostare i colori per un LED RGB
+ common anode
+
+ Schema: http://lab.piffa.net/schemi/rgb.jpg
+ */
+
+int redPin = 11;
+int greenPin = 10;
+int bluePin = 9;
+
+
+
+void setup()
+{
+  pinMode(redPin, OUTPUT);
+  pinMode(greenPin, OUTPUT);
+  pinMode(bluePin, OUTPUT);
+}
+
+void loop()
+{
+  analogWrite(redPin, 255);
+  analogWrite(greenPin,255);
+  analogWrite(bluePin, 255);
+}
+
+/* Domande:
+ 
+ 1. Accendere il LED nei vari colori
+ 2. Come scrivere le istruzioni analog Write in modo da sottrarre i valori?
+ 3. Scrivere una funzione che accetti 3 parametri per impostare i colori
+ 4. Scrivere una funzione che accetti i colori in esadecimale
+    - http://www.yellowpipe.com/yis/tools/hex-to-rgb/color-converter.php
+ 5. Scrivere una funzione che accetti come parametro il nome del colore
+ es "blue" e imposti il LED.
+ */
+
+
+

diff --git a/RGB_LED/rgb_0_soluzione/rgb_0_soluzione.ino b/RGB_LED/rgb_0_soluzione/rgb_0_soluzione.ino
new file mode 100644 (file)
index 0000000..475de32
--- /dev/null
+++ b/RGB_LED/rgb_0_soluzione/rgb_0_soluzione.ino
@@ -0,0 +1,66 @@
+/*
+    Adafruit Arduino - Lesson 3. RGB LED
+ 
+ RGB LED: mpostare i colori per un LED RGB
+ common anode
+ */
+
+int redPin = 11;
+int greenPin = 10;
+int bluePin = 9;
+
+
+
+void setup()
+{
+  pinMode(redPin, OUTPUT);
+  pinMode(greenPin, OUTPUT);
+  pinMode(bluePin, OUTPUT);
+}
+
+void loop()
+{
+  setColor(0xFF,0x00,0x00) ; // imposta il LED in rosso
+
+  // setName("green") ; 
+}
+
+// Funzioni:
+void setColor(int red, int green, int blue)
+// Imposta i colori di un LED RGB Common Anodote
+// in esadecimale
+{
+  analogWrite(redPin, 255 -red);
+  analogWrite(greenPin, 255 - green);
+  analogWrite(bluePin, 255 - blue);
+}
+
+void setName(String colorName)
+// Imposta i colori di un LED RGB Common Anodote
+// tramite una stringa
+{
+  if (colorName == "red") {
+    analogWrite(redPin, 0 );
+    analogWrite(greenPin, 255 );
+    analogWrite(bluePin, 255 );
+  } 
+  else if (colorName == "green") {
+    analogWrite(redPin, 255 );
+    analogWrite(greenPin, 0 );
+    analogWrite(bluePin, 255 );
+  }
+  // ...
+}
+/* Hints:
+
+1. Per usare un solo valore esadecimale per settare i colori:
+   - http://ardx.org/src/code/CIRC12-code-MB-SPAR.txt
+ 
+ */
+
+
+
+
+
+
+

diff --git a/RGB_LED/rgb_1_all_color/rgb_1_all_color.ino b/RGB_LED/rgb_1_all_color/rgb_1_all_color.ino
index 29969add229ffc2368a934e61a4c4cb41ba5a7da..546d636e1ca44964aaa6d935ca3134f51c25fd61 100644 (file)
--- a/RGB_LED/rgb_1_all_color/rgb_1_all_color.ino
+++ b/RGB_LED/rgb_1_all_color/rgb_1_all_color.ino
@@ -1,5 +1,10 @@
     /*
     Adafruit Arduino - Lesson 3. RGB LED
     /*
     Adafruit Arduino - Lesson 3. RGB LED

+    
+    RGB LED: rotazione tra tutti i colori.
+
+     Schema: http://lab.piffa.net/schemi/rgb.jpg
+

     */
      
     int redPin = 11;
     */
      
     int redPin = 11;


@@ -43,3 +48,6 @@
     analogWrite(greenPin, green);
     analogWrite(bluePin, blue);
     }
     analogWrite(greenPin, green);
     analogWrite(bluePin, blue);
     }

+    
+    
+

diff --git a/RGB_LED/rgb_2_pwm/rgb_2_pwm.ino b/RGB_LED/rgb_2_pwm/rgb_2_pwm.ino
index 95637858d5910c9efb8c61ba9d5ede50b4ebeae1..8e712fc51374cb0ce2fe41ff6b397792ce63647a 100644 (file)
--- a/RGB_LED/rgb_2_pwm/rgb_2_pwm.ino
+++ b/RGB_LED/rgb_2_pwm/rgb_2_pwm.ino
@@ -1,8 +1,17 @@
+// RGB LED PWM transizione
+
+// Transizione di un LED RGB tra rosso - blue -verde
+// tramite PWM
+

 // This is meant for a Common Anodote RGB LED
 // See all those (255 - val). 
 
 // This is meant for a Common Anodote RGB LED
 // See all those (255 - val). 
 

-#define GREEN 9
-#define BLUE 10
+
+// Schema: http://lab.piffa.net/schemi/rgb.jpg
+
+
+#define GREEN 10
+#define BLUE 9

 #define RED 11
 #define delayTime 20
 
 #define RED 11
 #define delayTime 20
 

diff --git a/RGB_LED/rgb_3_ReadASCIIString/rgb_3_ReadASCIIString.ino b/RGB_LED/rgb_3_ReadASCIIString/rgb_3_ReadASCIIString.ino
index 9da6b1e1e2d0febf7f58a894c9ab106e406adbb2..d1c2a3b13cf7d20a90bb76649997cd5ba55b2d3a 100644 (file)
--- a/RGB_LED/rgb_3_ReadASCIIString/rgb_3_ReadASCIIString.ino
+++ b/RGB_LED/rgb_3_ReadASCIIString/rgb_3_ReadASCIIString.ino
@@ -1,5 +1,7 @@
 /*
   Reading a serial ASCII-encoded string.
 /*
   Reading a serial ASCII-encoded string.

+  
+  Beware: set monitor to NL NewLine only

  
  This sketch demonstrates the Serial parseInt() function.
  It looks for an ASCII string of comma-separated values.
  
  This sketch demonstrates the Serial parseInt() function.
  It looks for an ASCII string of comma-separated values.


@@ -11,16 +13,31 @@
  * blue cathode: digital pin 6
  * anode: +5V
  
  * blue cathode: digital pin 6
  * anode: +5V
  

+ Once you have programmed the Arduino, open your Serial minitor. 
+ Make sure you have chosen to send a newline character when sending a message. 
+ Enter values between 0-255 for the lights in the following format : 
+ Red,Green,Blue. 
+
+ 
+ Once you have sent the values to the Arduino, 
+ the attached LED will turn the color you specified, 
+ and you will receive the HEX values in the serial monitor. 
+ 

  created 13 Apr 2012
  by Tom Igoe
  
  This example code is in the public domain.
  created 13 Apr 2012
  by Tom Igoe
  
  This example code is in the public domain.

+
+
+
+  Schema: http://lab.piffa.net/schemi/rgb.jpg
+

  */
 
 // pins for the LEDs:
  */
 
 // pins for the LEDs:

-const int redPin = 3;
-const int greenPin = 5;
-const int bluePin = 6;
+const int redPin = 11;
+const int greenPin = 10;
+const int bluePin = 9;

 
 void setup() {
   // initialize serial:
 
 void setup() {
   // initialize serial:

diff --git a/piezo/piezo_5_Knock/piezo_5_Knock.ino b/piezo/piezo_5_Knock/piezo_5_Knock.ino
new file mode 100644 (file)
index 0000000..6f8c2c5
--- /dev/null
+++ b/piezo/piezo_5_Knock/piezo_5_Knock.ino
@@ -0,0 +1,55 @@
+/* Knock Sensor
+  
+   This sketch reads a piezo element to detect a knocking sound. 
+   It reads an analog pin and compares the result to a set threshold. 
+   If the result is greater than the threshold, it writes
+   "knock" to the serial port, and toggles the LED on pin 13.
+  
+   The circuit:
+       * + connection of the piezo attached to analog in 0
+       * - connection of the piezo attached to ground
+       * 1-megohm resistor attached from analog in 0 to ground
+
+   http://www.arduino.cc/en/Tutorial/Knock
+   
+   created 25 Mar 2007
+   by David Cuartielles <http://www.0j0.org>
+   modified 30 Aug 2011
+   by Tom Igoe
+   
+   This example code is in the public domain.
+
+ */
+ 
+
+// these constants won't change:
+const int ledPin = 13;      // led connected to digital pin 13
+const int knockSensor = A0; // the piezo is connected to analog pin 0
+const int threshold = 100;  // threshold value to decide when the detected sound is a knock or not
+
+
+// these variables will change:
+int sensorReading = 0;      // variable to store the value read from the sensor pin
+int ledState = LOW;         // variable used to store the last LED status, to toggle the light
+
+void setup() {
+ pinMode(ledPin, OUTPUT); // declare the ledPin as as OUTPUT
+ Serial.begin(9600);       // use the serial port
+}
+
+void loop() {
+  // read the sensor and store it in the variable sensorReading:
+  sensorReading = analogRead(knockSensor);    
+  
+  // if the sensor reading is greater than the threshold:
+  if (sensorReading >= threshold) {
+    // toggle the status of the ledPin:
+    ledState = !ledState;   
+    // update the LED pin itself:        
+    digitalWrite(ledPin, ledState);
+    // send the string "Knock!" back to the computer, followed by newline
+    Serial.println("Knock!");         
+  }
+  delay(100);  // delay to avoid overloading the serial port buffer
+}
+