Salve a tutti ho trovato questo sito: http://tronixstuff.wordpress.com/2011/03/30/tutorial-arduino-and-infra-red-control e avendo un ricevitore ir ho deciso di provare.
sono riuscito a programmare l' accensione e il relativo spegnimento di un led ma non riesco a mandare in esecuzione programmi più complessi.
io volevo alla pressione di un tasto sul telecomando far partire una melodia usando l' esempio toneMelody ma non ci riesco come devo fare?
prego postare il codice 
// example 32.2 - IR receiver code translator
// for Sony IR codes (ignores 2nd and 3rd signal repeat)
// Arduino Tutorials | tronixstuff.com > chapter 32
// based on code by Ken Shirriff - http://arcfn.com
#include "pitches.h"
#include "Wire.h" // for I2C bus
#include "LiquidCrystal_I2C.h" // for I2C bus LCD module http://bit.ly/eNf7jM
LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display
#include <IRremote.h> // use the library for IR
int receiver = 11; // pin 1 of IR receiver to Arduino digital pin 11
IRrecv irrecv(receiver); // create instance of 'irrecv'
decode_results results;
void setup()
{
lcd.init(); // initialize the lcd
lcd.backlight(); // turn on LCD backlight
irrecv.enableIRIn(); // Start the receiver
}
void translateIR() // takes action based on IR code received
// describing Sony IR codes on LCD module
{
switch(results.value)
{
case 0x37EE:
int melody[] = {
NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
4, 8, 8, 4,4,4,4,4 };void setup() {
// iterate over the notes of the melody:
for (int thisNote = 0; thisNote < 8; thisNote++) {// to calculate the note duration, take one second
// divided by the note type.
//e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
int noteDuration = 1000/noteDurations[thisNote];
tone(8, melody[thisNote],noteDuration);// to distinguish the notes, set a minimum time between them.
// the note's duration + 30% seems to work well:
int pauseBetweenNotes = noteDuration * 1.30;
delay(pauseBetweenNotes);
// stop the tone playing:
noTone(8);
}
}
; break;
case 0xA90: lcd.println(" Power button "); break;
case 0x290: lcd.println(" mute "); break;
case 0x10: lcd.println(" one "); break;
case 0x810: lcd.println(" two "); break;
case 0x410: lcd.println(" three "); break;
case 0xC10: lcd.println(" four "); break;
case 0x210: lcd.println(" five "); break;
case 0xA10: lcd.println(" six "); break;
case 0x610: lcd.println(" seven "); break;
case 0xE10: lcd.println(" eight "); break;
case 0x110: lcd.println(" nine "); break;
case 0x910: lcd.println(" zero "); break;
case 0x490: lcd.println(" volume up "); break;
case 0xC90: lcd.println(" volume down "); break;
case 0x90: lcd.println(" channel up "); break;
case 0x890: lcd.println(" channel down "); break;
default: lcd.println(" other button ");
}
delay(500);
lcd.clear();
}
void loop()
{
if (irrecv.decode(&results)) // have we received an IR signal?
{
translateIR();
for (int z=0; z<2; z++) // ignore 2nd and 3rd signal repeat
{
irrecv.resume(); // receive the next value
}
}
}
E in un altro tab metto
#define NOTE_B0 31
#define NOTE_C1 33
#define NOTE_CS1 35
#define NOTE_D1 37
#define NOTE_DS1 39
#define NOTE_E1 41
#define NOTE_F1 44
#define NOTE_FS1 46
#define NOTE_G1 49
#define NOTE_GS1 52
#define NOTE_A1 55
#define NOTE_AS1 58
#define NOTE_B1 62
#define NOTE_C2 65
#define NOTE_CS2 69
#define NOTE_D2 73
#define NOTE_DS2 78
#define NOTE_E2 82
#define NOTE_F2 87
#define NOTE_FS2 93
#define NOTE_G2 98
#define NOTE_GS2 104
#define NOTE_A2 110
#define NOTE_AS2 117
#define NOTE_B2 123
#define NOTE_C3 131
#define NOTE_CS3 139
#define NOTE_D3 147
#define NOTE_DS3 156
#define NOTE_E3 165
#define NOTE_F3 175
#define NOTE_FS3 185
#define NOTE_G3 196
#define NOTE_GS3 208
#define NOTE_A3 220
#define NOTE_AS3 233
#define NOTE_B3 247
#define NOTE_C4 262
#define NOTE_CS4 277
#define NOTE_D4 294
#define NOTE_DS4 311
#define NOTE_E4 330
#define NOTE_F4 349
#define NOTE_FS4 370
#define NOTE_G4 392
#define NOTE_GS4 415
#define NOTE_A4 440
#define NOTE_AS4 466
#define NOTE_B4 494
#define NOTE_C5 523
#define NOTE_CS5 554
#define NOTE_D5 587
#define NOTE_DS5 622
#define NOTE_E5 659
#define NOTE_F5 698
#define NOTE_FS5 740
#define NOTE_G5 784
#define NOTE_GS5 831
#define NOTE_A5 880
#define NOTE_AS5 932
#define NOTE_B5 988
#define NOTE_C6 1047
#define NOTE_CS6 1109
#define NOTE_D6 1175
#define NOTE_DS6 1245
#define NOTE_E6 1319
#define NOTE_F6 1397
#define NOTE_FS6 1480
#define NOTE_G6 1568
#define NOTE_GS6 1661
#define NOTE_A6 1760
#define NOTE_AS6 1865
#define NOTE_B6 1976
#define NOTE_C7 2093
#define NOTE_CS7 2217
#define NOTE_D7 2349
#define NOTE_DS7 2489
#define NOTE_E7 2637
#define NOTE_F7 2794
#define NOTE_FS7 2960
#define NOTE_G7 3136
#define NOTE_GS7 3322
#define NOTE_A7 3520
#define NOTE_AS7 3729
#define NOTE_B7 3951
#define NOTE_C8 4186
#define NOTE_CS8 4435
#define NOTE_D8 4699
???
allora non so da dove hai preso il codice ma:
1: in translateIR() c'è uno switch che ridichiara la funzione setup(), dubito cghe questo piaccia al compilatore.
2: la logica usata per ignorare il 2° e 3° segnale mi pare erronea, ma non so come funziona la libreria quindi potrei sbagliarmi.
che errori ti dà il compilatore?
Gli errori sono:
sketch_sep05a.cpp: In function 'void translateIR()':
sketch_sep05a:31: error: a function-definition is not allowed here before '{' token
sketch_sep05a:81: error: expected }' at end of input sketch_sep05a:81: error: expected }' at end of input
sì, si incavola per il punto 1 che ho scritto prima
che cosa vorresti fare esattamente e perchè è finita li dentro ad un case una definizione di funzione?
non possono esserci 2 setup() nello stesso sketch, sopratutto non si possono definire funzioni dentro un altra funzione.
È questo l' errore che Ti viene segnalato.
"sketch_sep05a:31: error: a function-definition is not allowed here before '{' token"
Riscrivi il programma.
Ciao Uwe
scusa ma davvero non ha proprio senso.
di primo impatto potresti provare a correggere così:
// example 32.2 - IR receiver code translator
// for Sony IR codes (ignores 2nd and 3rd signal repeat)
// http://tronixstuff.com/tutorials > chapter 32
// based on code by Ken Shirriff - http://arcfn.com
#include "pitches.h"
#include "Wire.h" // for I2C bus
#include "LiquidCrystal_I2C.h" // for I2C bus LCD module http://bit.ly/eNf7jM
LiquidCrystal_I2C lcd(0x27,16,2); // set the LCD address to 0x27 for a 16 chars and 2 line display
#include <IRremote.h> // use the library for IR
int receiver = 11; // pin 1 of IR receiver to Arduino digital pin 11
IRrecv irrecv(receiver); // create instance of 'irrecv'
decode_results results;
void setup()
{
lcd.init(); // initialize the lcd
lcd.backlight(); // turn on LCD backlight
irrecv.enableIRIn(); // Start the receiver
}
void translateIR() // takes action based on IR code received
// describing Sony IR codes on LCD module
{
switch(results.value)
{
case 0x37EE:
int melody[] = {
NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};
// note durations: 4 = quarter note, 8 = eighth note, etc.:
int noteDurations[] = {
4, 8, 8, 4,4,4,4,4 };
// iterate over the notes of the melody:
for (int thisNote = 0; thisNote < 8; thisNote++) {
// to calculate the note duration, take one second
// divided by the note type.
//e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
int noteDuration = 1000/noteDurations[thisNote];
tone(8, melody[thisNote],noteDuration);
// to distinguish the notes, set a minimum time between them.
// the note's duration + 30% seems to work well:
int pauseBetweenNotes = noteDuration * 1.30;
delay(pauseBetweenNotes);
// stop the tone playing:
noTone(8);
}
}
break;
case 0xA90: lcd.println(" Power button "); break;
case 0x290: lcd.println(" mute "); break;
case 0x10: lcd.println(" one "); break;
case 0x810: lcd.println(" two "); break;
case 0x410: lcd.println(" three "); break;
case 0xC10: lcd.println(" four "); break;
case 0x210: lcd.println(" five "); break;
case 0xA10: lcd.println(" six "); break;
case 0x610: lcd.println(" seven "); break;
case 0xE10: lcd.println(" eight "); break;
case 0x110: lcd.println(" nine "); break;
case 0x910: lcd.println(" zero "); break;
case 0x490: lcd.println(" volume up "); break;
case 0xC90: lcd.println(" volume down "); break;
case 0x90: lcd.println(" channel up "); break;
case 0x890: lcd.println(" channel down "); break;
default: lcd.println(" other button ");
}
delay(500);
lcd.clear();
}
void loop()
{
if (irrecv.decode(&results)) // have we received an IR signal?
{
translateIR();
for (int z=0; z<2; z++) // ignore 2nd and 3rd signal repeat
{
irrecv.resume(); // receive the next value
}
}
}
e allora potrebbe anche funzionare.
Un consiglio che deve valere SEMPRE.
tu stai impareando immagino, non sprecarti a fare copia->incolla cerca di capire ciò che stai facendo perchè scommetto che se ora ti indicassi una parte del codice che hai copiato e ti dicessi "commentami perchè hai fatto così" non mi daresti risposta e questo è un male